NJOKU, P.C. An energy system planning model for the industrial sector in Nigeria. Journal of Energy in Southern Africa, [S. l.], v. 19, n. 2, p. 25–28, 2008. DOI: 10.17159/2413-3051/2008/v19i2a3326. Disponível em: https://energyjournal.africa/article/view/3326. Acesso em: 6 may. 2024.