BARBER, R. Research and extension to promote the sustainability of the basic gratns system in the slopes in the area of El Salvador. Agronomía Mesoamericana, [S. l.], v. 8, n. 2, p. 159–164, 2016. DOI: 10.15517/am.v8i2.24716. Disponível em: https://revistas.ucr.ac.cr/index.php/agromeso/article/view/24716. Acesso em: 19 oct. 2024.