Okpechi, K. U. P., E. C. Nwaokorongwu, and U. Joseph. “THE EFFECT OF Mg, Mn, Co DOPING ON THE OPTICAL PROPERTIES OF FeO THIN FILMS”. FUDMA JOURNAL OF SCIENCES, Vol. 8, no. 3, June 2024, pp. 263 -69, doi:10.33003/fjs-2024-0803-2357.