Saya mau tau Rujukan dari Sejarah Pasukan Polis Singapura. Jelaskan dalam bahasa melayu

"In the Service of the Nation", John Drysdale, Federal Publications, 1985 ISBN 9971-4-0703-5

"Phoenix: the story of the Home Team ", Felix Soh, Times Editions, 2003 ISBN 981-232-637-5

"Policing Singapore in the 19th & 20th centuries", Peer M. Akbur, Singapore Police Force, 2002 ISBN 981-04-7024-X