Arifuddin Muda Harahap, Mirza Nasution, and Calvin. “Legal Review of Outsourcing in Indonesia As a Form of Hidden Exploitation in Employment Relations”. ISNU Nine-Star Multidisciplinary Journal 1, no. 3 (December 30, 2024): 337–348. Accessed September 13, 2025. https://journal.isnu-sumut.org/index.php/ins9mj/article/view/796.