Leyva Rodríguez, Santa Laura, Maricela Pérez Méndez, and Yamilé Batista Yero. “Effect of Biochar and Equine Manure on the Production of Humus from Red California Earthworm (Eisenia fètida)”. Masferrer Investiga 14, no. 4 (December 2, 2024): 40–50. Accessed November 10, 2026. https://revistas.usam.edu.sv/index.php/masferrer_investiga/article/view/17.