Erfit, Erfit, and Yulmardi Yulmardi. “Analysis Cluster of Palm Processing Industry in Indonesia”. Jurnal Perspektif Pembiayaan dan Pembangunan Daerah 5, no. 4 (June 2, 2018): 290–299. Accessed May 4, 2025. https://online-journal.unja.ac.id/JES/article/view/5134.