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Saragih, J. R.; 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 2021, 5, 101-109.