Investment Feasibility Analysis of Product Diversification Programme Case Study in Sei Aek Pancur Biofertilizer Factory. J. Penelitian Kelapa Sawit [Internet]. 2026 Sep. 10 [cited 2026 Oct. 25];34(2):97-112. Available from: https://jurnalkelapasawit.iopri.org/index.php/jpks/article/view/361