Jumriah, Ahmad Muhlis Nuryadi, and Basri Sufa. “Tataniaga Kopi Robusta Di Kabupaten Kolaka Timur, Sulawesi Tenggara”. Bincang Sains dan Teknologi 4, no. 02 (May 10, 2025): 61–70. Accessed October 8, 2026. https://journal.iistr.org/index.php/BST/article/view/947.