Sinulingga, Gregory Mechamad Dion. “Optimization of the Performance of the PPA Unit in Handling Special Crimes in the Jurisdiction of the Boyolali Police”. Advances in Police Science Research Journal 4, no. 3 (September 13, 2024). Accessed November 22, 2024. http://journal.akpol.ac.id/index.php/apsrj/article/view/1031.