Emegha, J. O., Okafor, M. C., Attoh, V. A., Okwuelum, A. B., Okeke, N. B., & Okoh, J. (2026). Synthesis and Characterization of Quaternary Copper Barium Iron Sulphide Thin Films by Chemical Bath Deposition. UMYU Scientifica, 5(2), 388-399. https://doi.org/10.56919/usci.2652.035