Galace, P. I., & Cruz, E. (2009). Projek Sirib II: Establishment of Timpuyog Zambales, Inc.'s Online Educational Centers. Technology Management Center.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGalace, Peter I., और Edison Cruz. Projek Sirib II: Establishment of Timpuyog Zambales, Inc.'s Online Educational Centers. University of the Philippines Diliman, Quezon City: Technology Management Center, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGalace, Peter I., और Edison Cruz. Projek Sirib II: Establishment of Timpuyog Zambales, Inc.'s Online Educational Centers. Technology Management Center, 2009.
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