References
- Chan , J.M. 1993 . “ Commercialization without independence: Trends and tensions of media development in China ” . In China review 1993 , Edited by: Cheng , J. and Maurice , B. 25.1 – 25.21 . Hong Kong : Chinese University Press .
- Hallin , D.C. and Mancini , P. 2004 . Comparing media systems: Three models of media and politics , Cambridge : Cambridge University Press .
- Siebert , F.S. , Peterson , T. and Schramm , W. 1956 . Four theories of the press , Urbana : University of Illinois Press .
- Yu , X. 1994 . Professionalization without guarantees: Changes of the Chinese press in post-1989 years . Gazette , 53 ( 1–2 ) : 23 – 41 .