Kirkham, George L.
Introduction to law enforcement
Harper & Row, 1980
 Buku Teks
Coffey, Alan R.
Juvenile justice as a system Law enforcement to rehabilitation
Prentice-Hall, 1974
 Buku Teks
Nadhira Hesty Utami
Pelaksanaan Pemungutan Pajak Penghasilan dan Penegakan Hukum Terhadap Pengusaha Kecil = Implementation of Income Tax Collection and Law Enforcement on Small Entrepreneurs
Fakultas Hukum Universitas Indonesia, 2022
 UI - Tesis Membership
Contemporary issues in law enforcement and policing
Andrew Millie, Dilip K. Das, editor
CRC Press, Taylor & Francis Group, 2008
 Buku Teks
Hall, Livingston
Cases on criminal law and its enforcement
West Publishing, 1958
 Buku Teks