Alexander, Alex G. “High Sucrose Levels and Abnormal Enzyme Activity As a Function of Nutritional Stress in Sugarcane”. The Journal of Agriculture of the University of Puerto Rico 51, no. 4 (October 1, 1967): 325–333. Accessed April 16, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/11230.