Bernas, Siti Masreah, Maria Fitriana, Andi Wijaya, and Siti Nurul Aidil Fitri. “Effect of the Seedling Age and Compost to the Growth of Palm Date Lulu (Phoenix Dactylifera L.) Nursery and Investigation of Female Seedling on Soil of Sub-Optimal Land”. Jurnal Lahan Suboptimal : Journal of Suboptimal Lands 9, no. 2 (October 6, 2020): 199–207. Accessed October 20, 2021. https://jlsuboptimal.unsri.ac.id/index.php/jlso/article/view/509.