Wulandari, Ayu, and Muhammad Ansori Nasution. “Comparison of Roundtable On Sustainable Palm Oil (RSPO), Indonesian Sustainable Palm Oil (ISPO), and Malaysian Sustainable Palm Oil (MSPO)”. Jurnal Penelitian Kelapa Sawit 29, no. 1 (April 20, 2021): 35-48. Accessed June 18, 2021. https://jurnalkelapasawit.iopri.org/index.php/jpks/article/view/129.