Rivera Brenes, L. (1947) “The utilization of grasses, legumes and other forage crops for cattle feeding in Puerto Rico I. Comparison of Guinea Grass, Para Grass ‘Malojillo’ and a mixture of Para Grass and Tropical Kudzu as pasture crops”, The Journal of Agriculture of the University of Puerto Rico, 31(2), pp. 180–189. doi: 10.46429/jaupr.v31i2.12845.