Faizah, Rokhana, Iif Rahmat Fauzi, Ihza Kurniawan Pratama, Heri Santoso, Muhayat Muhayat, and Junaidi Junaidi. “Investment Feasibility Analysis of Product Diversification Programme Case Study in Sei Aek Pancur Biofertilizer Factory”. Jurnal Penelitian Kelapa Sawit 34, no. 2 (September 10, 2026): 97–112. Accessed September 10, 2026. https://jurnalkelapasawit.iopri.org/index.php/jpks/article/view/361.