J., J. R., E. M. Balasubramaniam, and J. P. D. “Speed Control of PV Based Three Phase Induction Motor Used for Water Pumping System”. The International Journal of Science & Technoledge, vol. 2, no. 6, June 2014, http://internationaljournalcorner.com/index.php/theijst/article/view/139062.