Kuta, J. I. J., O. O. Yusuf, and E. Raymond. “Assessment of Task, Activities and Working Materials Used in Non-Formal Training of Solar and Satellite System Installation in Niger State”. Journal of Sustainability and Environmental Management 1, no. 2 (May 26, 2022): 247–256. Accessed March 10, 2025. https://nepjol.info./index.php/josem/article/view/45376.