Villanueva, M. A. (2008). Surveys don't win an election. IN Commonsense [column]. Philippine Star.
Chicago-viite (17. p.)Villanueva, Marichu A. "Surveys Don't Win an Election. IN Commonsense [column]." Philippine Star 2008.
MLA-viite (9. p.)Villanueva, Marichu A. "Surveys Don't Win an Election. IN Commonsense [column]." Philippine Star, 2008.
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