APA-čujuhus (7. p.)
Du Plooy G. M. (2009). Communication research: Techniques, methods and applications (2nd ed.). Juta & Co, Ltd..
Chicago-čujuhus (17. p.)
Du Plooy G. M. Communication Research: Techniques, Methods and Applications. 2nd ed. Cape Town: Juta & Co, Ltd., 2009.
MLA-čujuhus (9. p.)
Du Plooy G. M. Communication Research: Techniques, Methods and Applications. 2nd ed. Juta & Co, Ltd., 2009.
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