Marcelino, Junito P., and Elvie V. Diaz. “Frond Pruning Enhanced The Growth and Yield of Eight-Year-Old Oil Palm (Elaeis Guineensis Jacq.)”. Annals of Tropical Research 38, no. 2 (December 2, 2016): 96–105. Accessed December 5, 2025. https://atr.vsu.edu.ph/article/view/199.