Hutahayan, Antonyus, Gultom, Maidin, AND Lubis, Muhammad. " PERAN KEPOLISIAN DALAM PENANGANAN TINDAK PIDANA PENCUCIAN UANG (Studi di Kepolisian Daerah Sumatera Utara)" JURNAL PROINTEGRITA [Online], Volume 5 Number 3 (31 January 2022)