NJOKU, P.C. A system methodology for an energy planning model and renewable energy technologies for agriculture in Nigeria. Journal of Energy in Southern Africa, [S. l.], v. 19, n. 3, p. 30–34, 2008. DOI: 10.17159/2413-3051/2008/v19i3a3328. Disponível em: https://energyjournal.africa/article/view/3328. Acesso em: 29 apr. 2024.