Sebayang, Lukas. “Analisis Komoditas Pertanian Unggulan Dan Arahan Pengembangannya Di Kabupaten Pakpak Bharat”. Jurnal Online Pertanian Tropik 6, no. 1 (December 3, 2019): 88–100. Accessed October 26, 2025. https://talenta.usu.ac.id/jpt/article/view/3044.