FS H, Arman I, Harahap N, Fauzi Ahmad S. Provision of Urea Fertilizer and Organic Fertilizer of Rice Husk Charcoal on the Growth of Oil Palm Seeds. Petrop [Internet]. 2022Sep.8 [cited 2024May5];9(2):170-4. Available from: https://talenta.usu.ac.id/jpt/article/view/9534