A.A., A., A. A.B., A. S. I., B. O. A., and A. J.T. “Structural and Optical Properties of Chemically Synthesized Cu2ZnSnS4 (CZTS) Nanoparticles”. Covenant Journal of Physical and Life Sciences, vol. 5, no. 2, Jan. 2018, https://journals.covenantuniversity.edu.ng/index.php/cjpls/article/view/772.