Sitinjak, Wahyunita, Roeskani Sinaga, and Nisa Dearni Sinaga. “Potensi Komoditas Kopi Dalam Perekonomian Daerah Kabupaten Dairi”. Jurnal Ekuilnomi 7, no. 2 (May 31, 2025): 608–614. Accessed August 7, 2025. https://jurnal.usi.ac.id/index.php/ekuilnomi/article/view/1834.