Smart, Huw
Blackstone's police Q and A : crime 2006
Oxford University Press, 2006
 Buku Referensi
Smart, Huw
Blackstone's police Q and A : general police duties 2006
Oxford University Press, 2006
 Buku Referensi
Smart, Huw
Blackstone's police Q and A : road policing 2006
Oxford University Press, 2006
 Buku Referensi
Carlson, Ronald L.
Criminal justice procedure for police
Anderson, 1970
 Buku Teks
Battus
Q
querido's uigeverij, 1990
 Buku Teks