Sarkum, Sumitro, and Arman Harahap. “Supply Chain Of Fresh Fruit Bunches From Independent Oil Palm Farmers”. International Journal of Science and Environment (IJSE) 5, no. 1 (February 12, 2025): 41–46. Accessed March 10, 2025. https://ijsenet.com/index.php/IJSE/article/view/146.