RAMÍREZ, O. D.; GREEN, J. J.; CALONI, I. B. Guinea Negro: A High-Yielding Out-of-Season Yam Cultivar. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 68, n. 2, p. 193–198, 1984. DOI: 10.46429/jaupr.v68i2.7278. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/7278. Acesso em: 19 apr. 2024.