BETANCO MARADIAGA, Juan Alberto. Energy: From a waste model, towards a sustainable model using renewable energy. Revista Científica Estelí, [S. l.], n. 24, p. 40–59, 2018. DOI: 10.5377/farem.v0i24.5551. Disponível em: https://www.camjol.info/index.php/FAREM/article/view/5551. Acesso em: 8 dec. 2025.