SUHARLAN PASANGKA; SYAHRIR; NURHAEDAH. Analysis of the Role of Traffic Police Competence in Efforts to Reduce Congestion Levels on Highways. Al-Kharaj: Journal of Islamic Economic and Business, [S. l.], v. 7, n. 3, 2025. DOI: 10.24256/kharaj.v7i3.7711. Disponível em: https://ejournal.iainpalopo.ac.id/index.php/alkharaj/article/view/7711. Acesso em: 8 aug. 2025.