Aguilera, M. L. (1992). Archaeological survey of the Northwest Amoslog limestone area in Placer, Surigao del Norte. Archaeology Division, National Museum.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAguilera, Melchor L. Archaeological Survey of the Northwest Amoslog Limestone Area in Placer, Surigao Del Norte. Manila: Archaeology Division, National Museum, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAguilera, Melchor L. Archaeological Survey of the Northwest Amoslog Limestone Area in Placer, Surigao Del Norte. Archaeology Division, National Museum, 1992.
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