Z'Graggen J.A. A Comparative Word List of the Rai Coast Languages, Madang Province, Papua New Guinea

Pacific Linguistics, Research School of Pacific and Asian Studies, Australian National University, 1980. — xii + 181 p. ISBN: 0858832321
The Rai Coast languages are located in the central part of the Madang Province, Papua New Guinea, extending from the Astrolabe Bay area south towards the Ramu River and east towards Saidor town.
This present volume presents comparative tables of a list of around 300 words and some structural elements for further research and evaluation.