HARAHAP, N. . Role Effectiveness of KPPU Regional Office I Medan in Supervising Partnerships. IJOSPOL - International Journal of Social, Policy and Law , [S. l.], v. 3, n. 2, p. 22-29, 2022. DOI: 10.8888/ijospl.v3i2.103. Disponível em: https://ijospl.org/index.php/ijospl/article/view/103. Acesso em: 21 apr. 2026.