HAMDANIL. SISTEM OUTSOURCING DI SUMATERA BARAT PERSPEKTIF HUKUM ISLAM DAN ETIKA BISNIS ISLAM. Islamic Circle , [S. l.], v. 2, n. 2, p. 22–31, 2021. DOI: 10.56874/islamiccircle.v2i2.551. Disponível em: https://jurnal.stain-madina.ac.id/index.php/islamiccircle/article/view/551. Acesso em: 26 aug. 2025.