5Drew O.McDaniel. "Broadcasting in the Malay"[M]. Ablex Publishing Corporation Newwood, New Jersey: 1994.
6George Gerner, etc. "International Fncyelopedia of Communications" [M]. Published jointly by the Annenberg School of Communication, University of Pennsylwania and Oxford. University Press Inc. 1989.
7Doreen G.Femandez. "The Philippine Press System: 1811-1989" Philippine studies[M]. 37(1989).P317-44.