Aruta, Jinder, Jimmy Calosor, Jonas Florindo, Eduardo Garino, Jetro Sumaylo, and Denise Anne G. Osorio RC MS Crim. 2019. “Problems Encountered By Police Officers in Conducting Buy-Bust Operation and Drug Related Cases in Batasan Hills, Quezon City”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research 1 (1). https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/1501.