Bibliography

Bibliography of Vitality:
Cooper, Gregory. 1981. "A Sociolinguistic Survey of Beli, Yahang and Laeko-Libuat." In Sociolinguistic surveys of Sepik languages, edited by Richard Loving. 29: 141-161. Summer Institute of Linguistics.
Bibliography of Locations:
Anthony Aristar, Helen Aristar-Dry and Yichun Xie. 2012. "LL-MAP (Language and Location: A Map Accessibility Project)." Online: http://llmap.org.
Bibliography of Context:
Cooper, Gregory. 1981. "A Sociolinguistic Survey of Beli, Yahang and Laeko-Libuat." In Sociolinguistic surveys of Sepik languages, edited by Richard Loving. 29: 141-161. Summer Institute of Linguistics.