“Analysis of Rubber Marketing Auction System in Kuantan Mudik Subdistrict Kuantan Singingi District”. Jurnal Sosial Ekonomi Pertanian 17, no. 3 (November 3, 2021): 47–58. Accessed August 21, 2026. https://journal.unhas.ac.id/index.php/jsep/article/view/18099.