Não informado. (2004). Ethnological survey publications, Phillipine Islands. Bureau of Printing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Ethnological Survey Publications, Phillipine Islands. Manila: Bureau of Printing, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Ethnological Survey Publications, Phillipine Islands. Bureau of Printing, 2004.
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