Wulandari, A., & Nasution, M. A. (2021). Comparison of Roundtable On Sustainable Palm Oil (RSPO), Indonesian Sustainable Palm Oil (ISPO), and Malaysian Sustainable Palm Oil (MSPO). Jurnal Penelitian Kelapa Sawit, 29(1), 35-48. https://doi.org/10.22302/iopri.jur.jpks.v29i1.129