Harmonization of Regulatory Authority between the Indonesian National Police and the National Narcotics Agency in the Use of Undercover Buy Techniques in Narcotics Crime Investigations. SINGOSARI, [S. l.], v. 3, n. 2, p. 64–71, 2026. DOI: 10.63440/singosari.v3i2.146. Disponível em: https://jurnal.sekawansiji.org/index.php/singosari/article/view/146. Acesso em: 25 jul. 2026.