Bala, D. A., H. Ali, D. Eli, and T. Yunana. “OPTICAL PROPERTIES OF REDUCED GRAPHENE OXIDE ON IRON OXIDE NANOPARTICLES”. FUDMA JOURNAL OF SCIENCES, Vol. 3, no. 2, Apr. 2023, pp. 226 -31, https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1507.