sihombing, vista uli, Anna Fariyanti, and Rachmat Pambudy. “FAKTOR-FAKTOR YANG MEMPENGARUHI KESEDIAAN MEMBAYAR KONSUMEN TERHADAP KOPI FAIR TRADE”. JURNAL AGRIBISAINS 8, no. 2 (October 10, 2022): 89–98. Accessed February 5, 2023. https://ojs.unida.ac.id/AGB/article/view/6547.