Setiyawan AB. Optimization of School Security Patrol Development by Traffic Security and Safety Unit of Semarang Big City Police Station in Order to Improve Senior High School Student Traffic Order. IJPS [Internet]. 2024Oct.17 [cited 2025Mar.16];6(11). Available from: http://arneta.akpol.ac.id:443/10.23.97.227/index.php/ijps/article/view/938