Ramos Santana, R., and J. E. Rodríguez Arroyo. “Introductions of Hemarthria Altissima in the Humid Corozal Highlands”. The Journal of Agriculture of the University of Puerto Rico, vol. 76, no. 3-4, Oct. 1992, pp. 161-70, doi:10.46429/jaupr.v76i3-4.4155.