Saragih JR, Harmain U. Faktor-faktor yang Mempengaruhi Kinerja Kewirausahaan Petani Kopi Arabika di Kecamatan Dolog Masagal, Kabupaten Simalungun, Provinsi Sumatera Utara: Factors Affecting the Entrepreneurial Performance of Arabica Coffee Farmers in Dolog Masagal District, Simalungun Regency, North Sumatra Province. JP2WD [Internet]. 2021Jun.10 [cited 2024May4];5(2):101-9. Available from: https://jai.ipb.ac.id/index.php/p2wd/article/view/33939