Ibrahim, Usman Muhammad, Suleiman Maikudi, Auwal Musa, J. Mohammed, and Faiza Ahmed. “Band-Gap, Urbach’s Energy Tail and Magnetic Analysis of Cs3+-Ni2+ Doped Zinc Spinel Ferrites Nanoparticles”. Nigerian Journal of Physics 34, no. 2 (September 23, 2025): 218–224. Accessed October 9, 2025. https://njp.nipngr.org/index.php/njp/article/view/444.