1. Abul’Wafa, A. R. (2011). Reliability/cost evaluation of a wind power delivery system. Electric Power Systems Research, 81, 873–879.
2. Alcorn, R., & O’Sullivan, D. (2014). Electrical design for ocean wave and tidal energy systems. United Kingdom: The Institution of Engineering and Technology. ISBN 978-1-84919-564-5.
3. Asian-Development-Bank. (2014). Wave energy conversion and ocean thermal energy conversion potential in developing member countries. Metro Manila, Philippines: Asian Development Bank. ISBN 978-92-9254-531-4.
4. Barca, J. C., & Sekercioglu, Y. A. (2013). Swarm robotics reviewed. Robotica, 31, 345–359.
5. Bauer, W., & Westfall, G. D. (2011). University physics with modern physics. New York, NY, USA: McGraw-Hill. ISBN 978-0-07-285736-8.