Hilma kholilah lubis, Lailanur Fadillah Nasution, Rizqy Fahmi, Purnama Ramadani Silalahi, and Khoirul Tamimi. “Analisis Finansial Penerapan Konsep Green Supply Chain Manajemen Pada Pengolahan Kopi Sidikalang”. Populer: Jurnal Penelitian Mahasiswa 1, no. 4 (January 4, 2023): 206–216. Accessed October 3, 2024. https://journal.unimar-amni.ac.id/index.php/Populer/article/view/454.