Samuels, G. and Alers Alers, S. (1977) “Evaluation of Sugarcane Chemical Ripeners Mon 0139 and 2139 (Monsanto) in a Small-Plot Field Experiment”., The Journal of Agriculture of the University of Puerto Rico, 61(4), pp. 421–428. doi: 10.46429/jaupr.v61i4.10404.