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Anthropological linguistics Papua New Guinea Nebilyer River Valley.
Nebilyer River Valley (Papua New Guinea) Politics and government.
Nebilyer River Valley (Papua New Guinea) Social life and customs.
Ethnology Papua New Guinea Gapun.
Language and culture Papua New Guinea Gapun.
Code switching (Linguistics) Papua New Guinea Gapun.
Gapun (Papua New Guinea) Social life and customs.