P. T. Mmeka, K.C. Nnoli, C.C. Udeh, N.O. Okobi. “OkpunoAwka)”. International Invention of Scientific Journal 8, no. 01 (March 30, 2024): Page: 17–24. Accessed January 7, 2025. https://iisj.in/index.php/iisj/article/view/407.