Philippines. National Board of Education. (1975). General policies on education 1973 and 1974. The Board.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. National Board of Education. General Policies on Education 1973 and 1974. Manila: The Board, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. National Board of Education. General Policies on Education 1973 and 1974. The Board, 1975.
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