Agustina, Delia, Cahya Prihatna, and Antonius Suwanto. “Rapid Inoculation Technique and Biological Control of Leaf Spot Disease in Oil Palm”. International Journal of Oil Palm 2, no. 1 (January 30, 2019): 1–11. Accessed September 26, 2025. http://ijop.id/index.php/ijop/article/view/24.