Yama, D. I., B. Doni, and Muliani. “Application of Arbuskular Mycorrhiza and Various Doses of NPKMg Fertilizer (15:15:6:4) in Pre-Nursery Oil Palm (Elaeis Guineensis Jacq.)”. SEMAI: Journal of Scientific Exploration of Modern Agrotechnological Innovations, Vol. 1, no. 1, Feb. 2025, pp. 15-23, https://ejurnal.polnep.ac.id/index.php/semai/article/view/1061.