Philippines. Department of Tourism. (1975). Department of Tourism & Philippine Tourism Authority information manual. DOT.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. Department of Tourism. Department of Tourism & Philippine Tourism Authority Information Manual. Manila: DOT, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. Department of Tourism. Department of Tourism & Philippine Tourism Authority Information Manual. DOT, 1975.
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