Ernah, Ernah, Eliana Wulandari, and Sudarjat Sudarjat. “Pengenalan Standar Perkebunan Kelapa Sawit Berkelanjutan”. Jurnal Abdidas 2, no. 1 (February 18, 2021): 92-97. Accessed May 3, 2026. https://abdidas.org/index.php/abdidas/article/view/218.