SOTOMAYOR-RAMÍREZ, D.; CRUZ, L.; PÉREZ-ALEGRÍA, L. R. Soil organic matter stocks and spatial distribution in the Rio Grande de Arecibo watershed. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 94, n. 1-2, p. 1-23, 2010. DOI: 10.46429/jaupr.v94i1-2.2582. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/2582. Acesso em: 21 jun. 2021.