• Cutajar, D, Farrugia, PS, Micallef, A: “An integrated approach to the study of heritage sites”, Journal of Cultural Heritage, 37, 1–8, 2019, DOI: 10.1016/j.culher.2018.10.014.
• Farrugia, PS, Gatt, R, Zammit Lonardelli, E, Grima, JN, Evans, KE: “Different Deformation Mechanisms Leading to Auxetic Behavior Exhibited by Missing Rib Square Grid Structures”, Physica Status Solidi (B), 256, 1800186, 2019, DOI: 10.1002/pssb.201800186.
• Farrugia PS, Gatt R and Grima JN: “A Novel Three-Dimensional Anti-Tetrachiral Honeycomb”, Physica Status Solidi (B), 256(1), 1800473, 2019, DOI: 10.1002/pssb.201800473.
• Mizzi, L, Attard, D, Gatt, R, Farrugia, PS, Grima, JN: “An analytical and finite element study on the mechanical properties of irregular hexachiral honeycombs”, Smart Materials and Structures, 27, 105016, 2018.
• Hicklin, W, Farrugia, PS, Sinagra, E: “Investigations of VOCs in and around buildings close to service stations”, Atmospheric Environment, 172, 93–101, 2018.
  
• Farrugia, PS, Micallef, A: “Vectorial statistics for the standard deviation of wind direction”, Meteorology and Atmospheric Physics, 129(5), 495–506, 2017.
  
• Farrugia, PS, and Micallef, A: “Power series solutions for laminar plumes in a natural environment”, Journal of Applied Mechanics and Technical Physics, 55(5), 781-792, 2014.
• Farrugia, PS, and Micallef, A: “Series solutions for turbulent plumes evolving in a natural environment”, Journal of Engineering Thermophysics, 23(3), 236-255, 2014.
• Gatt, R, Attard, D, Farrugia, PS, Azzopardi, KM, Mizzi, L, Brincat, JP and Grima, JN: “A realistic generic model for anti-tetrachiral systems”, Physica Status Solidi (B), 250(10), 2012-2019, 2013.
  
• Farrugia, PS, Micallef, A, “Turbulent plumes evolving in a vertical flow under a mixed convection regime”, International Journal of Heat and Mass Transfer, 55, 1931-1940, 2012.
• Farrugia, PS, Borg JL, Micallef A, “On the algorithms used to compute the standard deviation of wind direction”, Journal of Applied Meteorology and Climatology, 48(10), 2144-2151, 2009.
• Grima, JN, Farrugia, PS, Caruana, C, Gatt, R, Attard, D: “Auxetic behaviour from stretching connected squares”, Journal of Materials Science, 43(17), 5962 -5971 2008
• Grima, JN, Farrugia, PS, Gatt, R and Attard, D: “On the auxetic properties of rotating rhombi and parallelograms: A preliminary investigation”, Physica Status Solidi (B), 245(3), 521-529 2008.
• Grima, JN, Gatt, R, Farrugia, PS: “On the properties of auxetic meta-tetrachiral structures”, Physica Status Solidi (B), 245(3), 511-520 2008.
• Grima, JN, Farrugia, PS, Gatt, R and Zammit, V: “A system with adjustable positive or negative thermal expansion”, Proceedings of the Royal Society A, 463, 1585-1596 2007 [DOI: 10.1098/rspa.2007.1841].
• Grima, JN, Farrugia, PS, Gatt, R and Zammit, V: “Connected triangles exhibiting negative Poisson’s ratios and negative thermal expansion”, Journal of the Physical Society of Japan, 76, 025001.1-025001.2 2007. 
• Farrugia PS, Mann RB and Scott TC: “N-body gravity and the Schrodinger equation”, Classical and Quantum Gravity, 24, 4647-4659 2007. Also available on arXiv: gr-qc/0611144v1.
• Farrugia, PS and Micallef, A: “Comparative analysis of estimators for wind direction standard deviation”, Meteorological Applications, 13, 29-41 2006.
• Farrugia, PS and Micallef, A: “Derivation of a new measure of angular dispersion for circular variables using geometrical description”, Meteorological Journal, 7(3), 111-117 2004.

• Farrugia, PS and Micallef, A: “Modelling thermal plumes under mixed convection regimes”, Indoor Air 2011, 2011.
• Farrugia, PS and Micallef, A: “The effect of forced ventilation on the plume of a line heat source”, ASME-ATI-UIT 2010 Conference on Thermal and Environmental Issues in Energy Systems, 1027-1032, 2010.
• Farrugia, PS and Micallef, A: “Modelling buoyant and line heat sources using a commercial software package – an initial investigation”, Proceedings of the First International conference on Computational Methods for Thermal Problems,  273-276, 2009.
• Farrugia, PS and Micallef, A: “New measures of wind angular dispersion in three dimensions”, Proceedings of Air Pollution XVI (Air Pollution 2008), 385-395, 2008.
• Grima, JN,  Gatt, R, Farrugia, PS, Alderson, A and Evans, KE: “Auxetic cellular materials and structures”, Conference Proceedings of the ASME International Mechanical Engineering Congress & Exposition (2005).

Papers presented at conferences, etc.:

• Farrugia, P.S., Gatt, R., Mizzi, L., Grima-Cornish, J.N. and Grima J.N.: “Designing new auxetic structures based on known 2D systems”, Paper presented at the Auxetics 2019, 10th International Conference Auxetics and other materials and models with “negative” characteristics and 15th International Workshop Auxetics and related systems, Bedlewo, Poland, 2019.
  
• Farrugia PS, Gatt, R, Grima, JN: “Negative behaviour from a general Star-4 system”, Paper presented at the Auxetics 2018, 9th International Conference and 14th International Workshop, Auxetics and Related Systems with “Negative” Characteristics, Sheffield Hallam University, Sheffield, United Kingdom, 2018.
• Grima, JN, Dudek, KK, Caruana Gauci, R, Grech, MC, Degabriele, EP, Grima Cornish, JN, Calleja D, De Vrieze, S, Mellos, Ch, Farrugia, PS, Gatt, R, Attard, D, et al: “Auxetics at Various Scales of Structures”, Paper presented at the Auxetics 2017, 8th International Conference Auxetics and other materials and models with “negative” characteristics 13th International Workshop Auxetics and related systems, Heraklion, Greece, 2017.
  
• Farrugia, PS, Micallef, A: “Vectorial Statistics Of Wind Direction – A New Type Of Statistics?”, Science Trends, 2018. Available online from https://sciencetrends.com/vectorial-statistics-wind-direction-new-type-statistics 
  
• Grima, JN, Farrugia, PS, Gatt, R and Attard, D: “On the adjustable auxeticity of rotating rhombi and Parallelograms”, Paper presented at the Fourth International Workshop on Auxetics and Related Systems, Malta, September 2007.
• Grima, JN and Farrugia, PS: Extending 2D auxetic structures into 3D: The “bolt and nut” mechanism, poster presented at the Fourth International Workshop on Auxetics and Related Systems Malta, September 2007.
• Grima, JN, Gatt, R, Farrugia, PS, Raviala, N, Miller, W, Zammit, V, Chircop Bray, TG, Scarpa, F, Alderson, A, Smith, CW, Evans, KE and Alderson, K: “On the auxetic potential of 2D networks constructed from chiral building-blocks”, Paper presented at the 1st International Conference on Auxetics and Anomalous Systems (Incorporating the 3rd Int. Workshop on Auxetics and Related Systems), Exeter UK, September 2006. 
• Grima, JN, Zammit, V, Farrugia, PS, Gatt, R: “On the negative thermal properties of connected rods”, Paper presented at the 1st International Conference on Auxetics and Anomalous Systems (Incorporating the 3rd Int. Workshop on Auxetics and Related Systems), Exeter UK, September 2006. 
• Gatt, R, Farrugia, PS and Grima, JN: “Auxetic ‘meta-chiral’ networks”, Paper presented at the 1st International Conference on Auxetics and Anomalous Systems (Incorporating the 3rd Int. Workshop on Auxetics and Related Systems), Exeter UK, September 2006. 
• Grima, JN, Gatt, R, Farrugia PS and Evans, KE: “On the auxetic potential of ‘tetra-chiral’ and ‘anti-tetrachiral’ networks”, Paper presented at the 1st International Conference on Auxetics and Anomalous Systems (Incorporating the 3rd Int. Workshop on Auxetics and Related Systems), Exeter UK, September 2006. 
• Grima, JN, Gatt, R, Farrugia, PS, Raviala, N, Alderson, A, Alderson K and Evans, KE: “On the relationship between auxetic ‘rotating polygons’ and ‘chiral’ systems”, Paper presented at the 1st International Conference on Auxetics and Anomalous Systems (Incorporating the 3rd Int. Workshop on Auxetics and Related Systems), Exeter UK, September 2006. 

Books:

• Farrugia, PS and Grech, M: Intermediate Physics Solutions to 2017–2018 Exam Papers, ISBN 978-99957-874-5-5, Buzzer Publishers, Malta, 2019.
• Farrugia, PS and Grech, M: Intermediate Physics Solutions to 2015–2016 Exam Papers, ISBN 978-99957-891-3-8, Buzzer Publishers, Malta, 2017.
• Farrugia, PS: Intermediate Physics Solutions to 2013–2014 Exam Papers, ISBN 978-99957-892-0-6, Buzzer Publishers, Malta, 2016.
• Farrugia, PS: Intermediate Physics Solutions to 2000–2005 Exam Papers, ISBN 978-99957-891-7-6, Buzzer Publishers, Malta, 2016.
  
• Farrugia, PS: Solutions to the book Intermediate Physics 16-18 Fourth edition, ISBN 978-99957-891-6-9, Buzzer Publishers, Malta, 2016.
• Farrugia, PS: Intermediate Physics Solutions to 2011–2012 Exam Papers, ISBN 978-99957-874-0-0, Buzzer Publishers, Malta, 2015. Reprinted in 2016 with ISBN 978-99957-891-9-0.
• Farrugia, PS: Intermediate Physics, Solutions to Five Years of Intermediate Physics MATSEC Exam Papers 2006-2010, ISBN 978-99957-28-07-6, Buzzer Publishers, Malta, 2011. Reprinted in 016 with the name Intermediate physics Solutions to 2006–2010 Exam Papers and ISBN 978-99957-891-8-3.
• Farrugia, PS: Solutions to the book Intermediate Physics 16-18 Third edition, ISBN 978-99957-28-10-6, Buzzer Publishers, Malta, 2011.
• Farrugia, PS: Intermediate Physics, Solutions to Five Years of Intermediate Physics MATSEC Exam Papers 2005-2009, ISBN 978-99957-28-03-8, Buzzer Publishers, Malta, 2010.
• Farrugia, PS: Solutions to the book Intermediate Physics 16-18 Second edition, ISBN 978-99957-28-04-5, Buzzer Publishers, Malta, 2010.