MARTÍNEZ-RIVERA, W.; LUGO-MERCADO, H. . M.; BADILLO-FELICIANO, J.; BEAVER, J. S. Tillage, physical properties of Coto clay and the yields of plantain and sweet potato. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 71, n. 3, p. 307–311, 1987. DOI: 10.46429/jaupr.v71i3.6972. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/6972. Acesso em: 27 mar. 2023.