Umali, P. S. M. (2007). Logic: The art of living with reason. Mindshapers.
Chicago Style (17. basım) AtıfUmali, Pepe San Miguel. Logic: The Art of Living with Reason. Manila: Mindshapers, 2007.
MLA (9th ed.) AtıfUmali, Pepe San Miguel. Logic: The Art of Living with Reason. Mindshapers, 2007.
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