McCoy, Mark D.; Alderson, Helen A.; Hemi, Richard; Cheng, Hai; Edwards, R. Lawrence (November 2016). "Earliest direct evidence of monument building at the archaeological site of Nan Madol (Pohnpei, Micronesia) identified using 230Th/U coral dating and geochemical sourcing of megalithic architectural stone" (PDF). Quaternary Research. 86 (3): 295–303. Bibcode:2016QuRes..86..295M. [1]
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Mitchell, Andrew W. (1990). The Fragile South Pacific: An Ecological Odyssey. University of Texas Press. 24. or. ISBN 978-0-292-72466-2. [2]
