Baviga, R., E. Hamid, and S. Murdy. “ANALISIS EFISIENSI PEMASARAN KOPI ARABIKA DI KOTA SUNGAI PENUH PROVINSI JAMBI ”. Journal of Agribusiness and Local Wisdom, vol. 4, no. 1, June 2021, pp. 55 -64, https://online-journal.unja.ac.id/JALOW/article/view/13323.