Ut, Le Van, and Vo Thi Bach Mai. “Effect of Gibberellic Acid and Urea on the Growth of Pineapple Fruit (Ananas Comosus (L.) Merr.)”. Science & Technology Development Journal: Natural Sciences 3, no. 2 (August 7, 2019): 82-89. Accessed April 27, 2024. http://stdjns.scienceandtechnology.com.vn/index.php/stdjns/article/view/803.