Bennagen, P. d. C. (2002). A study guide to social, economic, and political thought. University of the Philippines, Open University.
Chicago Style (17. basım) AtıfBennagen, Pia del Campo. A Study Guide to Social, Economic, and Political Thought. Diliman, Quezon City: University of the Philippines, Open University, 2002.
MLA (9th ed.) AtıfBennagen, Pia del Campo. A Study Guide to Social, Economic, and Political Thought. University of the Philippines, Open University, 2002.
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