“Determinan Produksi Perkebunan Karet Di Desa Purwasari Kabupaten Bungo”. Jurnal Paradigma Ekonomika 14, no. 2 (December 31, 2019): 66 - 76. Accessed January 30, 2025. https://online-journal.unja.ac.id/paradigma/article/view/7800.