Alexander, Alex G., Rafael Montalvo-Zapata, and Ashok Kumar. “Enzyme-Silicon Studies of Gibberellic Acid-Treated Sugarcane During the Post Growth-Stimulatory Phase”. The Journal of Agriculture of the University of Puerto Rico 54, no. 1 (January 1, 1970): 82–95. Accessed December 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/11115.