Ngā hua rapu - "Slopes (Physical geography) Papua New Guinea"
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1
Land instability in the Numbugu village area between the Ufim and Biapim rivers, Morobe District
I whakaputaina 1975Ngā marau:Pukapuka -
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The study of the evolution of slope form over long periods of time : a review of methodologies and some new observational data from Papua New Guinea /
I whakaputaina 1980Ngā marau:Pukapuka