The impact of roads on the monetary activities of subsistence economies in the Okapa Region of Papua New Guinea /

समान संसाधन

• A rapid rural appraisal of the Okapa District, Eastern Highlands Province, Papua New Guinea /
  प्रकाशित: (1990)
• The impact of roads in the Gumine region of Papua New Guinea /
  द्वारा: Bouchard, J. F.
  प्रकाशित: (1973)
• Yagusa High School, Okapa, Eastern Highlands Province : designs for dining hall, classrooms, dormitory block /
  प्रकाशित: (1980)
• Environmental impact of roads and traffic /
  द्वारा: Watkins, L. H.
  प्रकाशित: (1981)
• Hiritano Highway, social and economic impacts
  द्वारा: Hoverman, S.
  प्रकाशित: (1981)