Gupit, F., & Martinez, D. T. (1993). A guide to Philippine legal materials: A text on Philippine legal bibliography, Philippine legal history, Philippine legal system, legal philosophy, methods of legal research. Rex Book Store.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGupit, Fortunato, और Daniel T. Martinez. A Guide to Philippine Legal Materials: A Text on Philippine Legal Bibliography, Philippine Legal History, Philippine Legal System, Legal Philosophy, Methods of Legal Research. Manila: Rex Book Store, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGupit, Fortunato, और Daniel T. Martinez. A Guide to Philippine Legal Materials: A Text on Philippine Legal Bibliography, Philippine Legal History, Philippine Legal System, Legal Philosophy, Methods of Legal Research. Rex Book Store, 1993.
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