Sa’idE. Gumbira. “Review Of Agroindustrial Strategic Studies, Researches And Development In Indonesia: The Case Of Oil Palm, Cacao And Gambir”. Jurnal Teknologi Industri Pertanian 19, no. 1 (1). Accessed May 6, 2024. https://jurnal.ipb.ac.id/index.php/jurnaltin/article/view/1109.