The most important thing in life : how PNG's traditional currencies and exchange systems have survived /

समान संसाधन

• Trade and exchange in Oceania and Australia /
  प्रकाशित: (1978)
• The New Britain currency, or shell money /
  द्वारा: Rickard, R. H.
  प्रकाशित: (1890)
• Recent neolithic trade in New Guinea : the ecological basis of traffic in goods among stone-age subsistence farmers /
  द्वारा: Hughes, Ian
  प्रकाशित: (1971)
• New Guinea Stone Age trade the geography and ecology of traffic in the interior
  द्वारा: Hughes, Ian
  प्रकाशित: (1977)
• Parellel states, parallel economics : legitimacy and prosperity in Papua New Guinea /
  द्वारा: Bainton, Nick
  प्रकाशित: (2009)