Lubis, Agung Anugrah, Syafruddin Kalo, Madiasa Ablisar, and Sunarmi Sunarmi. “Police Description In The Investigation of Criminal Narcotics (study at the North Sumatera National Narcotics Agency)”. LEGAL BRIEF 10, no. 1 (November 30, 2020): 26–38. Accessed April 30, 2026. https://legal.isha.or.id/index.php/legal/article/view/23.