“First Principle Study on the Structural Optimization and Electronic Properties of Methylammonium Bismuth Bromide and Methylammonium Galluim Bromide”, Phys. Memoir, vol. 1, no. 4, pp. 171–179, Jan. 2020, Accessed: Jul. 29, 2026. Available: https://physicsmemoir.org.ng/index.php/pmjtap/article/view/25