Ditya Riantiarni, and M. Zulherawan. “The Efforts of the Water and Air Police Directorate (Ditpolairud) of the Riau Regional Police in Preventing Transnational Narcotics Smuggling Crimes Along Riau’s Maritime Routes”. Sisi Lain Realita 10, no. 1 (July 9, 2026): 67–72. Accessed July 22, 2026. https://journal.uir.ac.id/index.php/sisilainrealita/article/view/29388.