B. Hutagaung, R. W. Asmarantaka, and A. K. Adhi, “Marketing Analysis of Indonesian Sustainable Palm Oil (ISPO) and non-ISPO Certified Independent Palm Oil in Batanghari Regency, Jambi Province, Indonesia”, Agro. Bali. Agric. J., vol. 7, no. 1, pp. 56–69, Apr. 2024.