MUSTAQIM, Yunus; PURNOMO, Muhammad; FIRMANSYAH, Nunung Agus; NINGRUM, Nurani Puspa. Outsourcing dalam Perspektif Ekonomi Syariah. Prosiding University Research Colloquium, [S. l.], p. 487–493, 2021. Disponível em: https://repository.urecol.org/index.php/proceeding/article/view/1713. Acesso em: 18 may. 2024.