Portable Bio-Digester For Sustainable Cooking Fuel And Bio-Fertilizer Generation. Journal of Namibian Studies : History Politics Culture, [S. l.], v. 37, p. 657–682, 2023. DOI: 10.59670/jns.v37i.5098. Disponível em: https://www.namibian-studies.com/index.php/JNS/article/view/5098. Acesso em: 4 nov. 2025.