Hin, Koh Teck. "Corruption Control In Singapore"(PDF). unafei.or.jp. United Nations Asia and Far East Institute for the Prevention of Crime and the Treatment of Offenders. Diakses tanggal 13 July 2023.
web.archive.org
"Roles & Functions". www.cpib.gov.sg (dalam bahasa Inggris). CPIB. Diarsipkan dari versi asli tanggal 24 September 2021. Diakses tanggal 15 July 2023.