Kasim, Thekra, et al. “Study of the Electronic Structure of Indium Gallium Phosphide In0.5Ga0.5P Nanocrystals”. Iraqi Journal of Physics, vol. 10, no. 19, Dec. 2012, pp. 19-24, https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/723.