Stempel, G. H., & Westley, B. H. (1989). Research methods in Mass communication (2.). Prentice Hall.
Chicago Style aipamenaStempel, Guido H., and Bruce H. Westley. Research Methods in Mass Communication. 2. New Jersey: Prentice Hall, 1989.
MLA aipamenaStempel, Guido H., and Bruce H. Westley. Research Methods in Mass Communication. 2. Prentice Hall, 1989.
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