Philippines. National Council for the Welfare of Disabled Persons. (1999). Philippine dictionary of signs. National Council for the Welfare of Disabled Persons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippines. National Council for the Welfare of Disabled Persons. Philippine Dictionary of Signs. [Quezon City]: National Council for the Welfare of Disabled Persons, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippines. National Council for the Welfare of Disabled Persons. Philippine Dictionary of Signs. National Council for the Welfare of Disabled Persons, 1999.
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