Performance analysis for flat plate collector with and without porous media. Journal of Energy in Southern Africa, [S. l.], v. 19, n. 4, p. 32–42, 2008. DOI: 10.17159/2413-3051/2008/v19i4a3336. Disponível em: https://energyjournal.africa/article/view/3336. Acesso em: 29 nov. 2024.