Sotomayor-Ríos, A., Rodríguez-García, J. and Silva, S. (1974) “Yield Comparison of Four Forage Grasses at Two Cutting Heights and Three Harvest Intervals”, The Journal of Agriculture of the University of Puerto Rico, 58(1), pp. 26–36. doi: 10.46429/jaupr.v58i1.10697.