Hamka, H., B. . Saragih, D. Sumarna, K. . P. Candra, S. . Agustin, and M. Marwati. “Review: The Potential for Development of Red Palm Oil Industry in East Kalimantan”. Journal of World Science, vol. 3, no. 5, May 2024, pp. 573-86, doi:10.58344/jws.v3i5.606.