SOTOMAYOR-RÍOS, A.; SCHERTZ, K. F.; WOODBURY, R.; VÉLEZ FORTUÑO, J. Taxonomic Description and Reproductive Behavior of Giant Pangola (Digitaria valida Stent). The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 44, n. 2, p. 53–59, 1960. DOI: 10.46429/jaupr.v44i2.12093. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12093. Acesso em: 27 jun. 2022.