“Analisis Location Quotient (LQ) Dalam Penentuan Lokasi Basis Tanaman Kopi (Coffea Sp) Di Kabupaten Tapanuli Utara”. GABBAH : Jurnal Pertanian Dan Perternakan 1, no. 3 (April 29, 2024): 103–109. Accessed March 21, 2026. https://jurnalistiqomah.org/index.php/gabbah/article/view/1933.