APA (7 वां संस्करण) प्रशस्ति पत्र

Villegas, E. M. (1988). The political economy of Philippine labor laws. Foundation for Nationalist Studies.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Villegas, Edberto Malvar. The Political Economy of Philippine Labor Laws. Quezon City: Foundation for Nationalist Studies, 1988.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Villegas, Edberto Malvar. The Political Economy of Philippine Labor Laws. Foundation for Nationalist Studies, 1988.

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