ATENCIO, P.; ALBERNAS CARVAJAL, Y. Energetic save from residential area through biogas production, as application of active and passive sun techniques. Centro AzĂșcar Journal, [S. l.], v. 38, n. 4, 2011. DisponĂ­vel em: http://centroazucar.uclv.edu.cu/index.php/centro_azucar/article/view/392. Acesso em: 26 jul. 2025.