Grant, Cameron (August 2007). "Damaged Dirt"(PDF). The Advertiser. Archived from the original(PDF) on 6 July 2011. Retrieved 23 April 2010. "Australia has the oldest, most highly weathered soils on the planet."
Lidicker, W. Z. Jr. (1968). "A Phylogeny of New Guinea Rodent Genera Based on Phallic Morphology". Journal of Mammalogy. 49 (4): 609–643. doi:10.2307/1378724. JSTOR1378724.
Lidicker, W. Z. Jr. (1968). "A Phylogeny of New Guinea Rodent Genera Based on Phallic Morphology". Journal of Mammalogy. 49 (4): 609–643. doi:10.2307/1378724. JSTOR1378724.
scheme=AGLSTERMS. AglsAgent; corporateName=State Library of New South Wales; address=1 Shakespeare Place, Sydney (7 June 2016). "Mapping Papua New Guinea". www.sl.nsw.gov.au. Retrieved 14 May 2024.{{cite web}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
Grant, Cameron (August 2007). "Damaged Dirt"(PDF). The Advertiser. Archived from the original(PDF) on 6 July 2011. Retrieved 23 April 2010. "Australia has the oldest, most highly weathered soils on the planet."
"The team also dated features consistent with the planting, digging, and tethering of plants and localized drainage systems to 10,000 years ago. Mounds constructed to plant water-intolerant plants such as bananas, sugarcane, and yams are dated to about 6,500 years ago." "Was Papua New Guinea an Early Agriculture Pioneer?" By John Roach, for National Geographic News, June 23, 2003
