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Copyright (c) 2019 At-tijaroh: Jurnal Ilmu Manajemen dan Bisnis Islam
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Lia Vebrina Siregar
Universitas Islam Negeri Sumatera Utara
Indonesia
Mustopa Kamal Rokan
Universitas Islam Negeri Sumatera Utara
Indonesia
Isnaini Harahap
Universitas Islam Negeri Sumatera Utara
Indonesia