Samuels, G., A. Vélez, R. A. Yates, and B. Walker. “Evaluation of Chemical Ripeners for Sugarcane”. The Journal of Agriculture of the University of Puerto Rico 56, no. 4 (October 1, 1972): 370–396. Accessed December 7, 2022. https://revistas.upr.edu/index.php/jaupr/article/view/10800.