A comparison of gel fuels with alternative cooking fuels. Journal of Energy in Southern Africa, [S. l.], v. 18, n. 4, p. 26–31, 2007. DOI: 10.17159/2413-3051/2007/v18i4a3392. Disponível em: https://energyjournal.africa/article/view/3392. Acesso em: 25 nov. 2024.