Khalaf, Y., O. Ibraheem, M. Adil, S. Mohammed, M. Qasim, and K. Waleed. “MAXIMUM POWER POINT EVALUATION OF PHOTOVOLTAIC MODULES UNDER SHADING EFFECT”. European Scientific Journal, ESJ, Vol. 10, no. 9, Mar. 2014, doi:10.19044/esj.2014.v10n9p%p.