Sirait, David, 		Marbun, Jaminuddin, AND 		Siregar, Syawal.
" ANALISIS YURIDIS PENEGAKAN KODE ETIK PROFESI POLRI DI KEPOLISIAN DAERAH SUMATERA UTARA" <em>JURNAL PROINTEGRITA</em> [Online], Volume 5 Number 3 (21 December 2021)