B. A. Maiyama, M. Momoh2, M. Musa, G. M. Argungu, S. Abdullahi and M. B. Abdullahi (2018) “Design and Performance Evaluation of Wind-Solar PV Energy System for Kola Village at Birnin Kebbi, Nigeria”, International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE, 4(1), pp. 72–78. doi: 10.7324/IJASRE.2018.32589.