Firmansyah, Libertino Banny. “Efforts to Improve the Performance of the State Security Unit of Intelkam in Investigations for the Prevention of ’LL’ Pill-Type Drugs at the Kediri City Police”. Advances in Police Science Research Journal 3, no. 9 (October 1, 2024). Accessed March 16, 2025. http://arneta.akpol.ac.id:443/10.23.97.227/index.php/apsrj/article/view/1541.