Loewen, Jacob A. 1954. "Waunana Grammar: A Descriptive Analysis."

Li, Charles N., Sandra A. Thompson and Jesse O. Sawyer. 1977. "Subject and Word Order in Wappo." In International Journal of American Linguistics, 43: 85-100.

Li, Charles N. and Sandra A. Thompson. 1978. "Relativization Strategies in Wappo." In Proceedings of the Annual Meeting of the Berkeley Linguistics Society, 4: 106-113.

Li, Charles N. and Sandra A. Thompson. 1977. "The Causative in Wappo: a Special Case of Doubling." In Proceedings of the Annual Meeting of the Berkeley Linguistics Society, 3: 175-181.

Velma J Leeding. Anindilyakwa Phonology and Morphology. PhD thesis, University of Sydney, 1989.

Lee, Kee-Dong. 1975. "Kusaiean Reference Grammar." The University Press of Hawaii.

Landar, Herbert Jay. 1963. "Navaho Syntax." 57: Linguistic Society of America.

Lapolla, with Chenglong Huang. 2003. "A Grammar of Qiang with Annotated Texts and Glossary." Mouton de Gruyter.

Künnap Ago. 1999. "Enets." Lincom Europa.

Kähler Hans. 1940. "Grammatischer Abriss Des Enganno." In Zeitschrift für Eingeborenensprachen, 30: 81-117, 182-210, 296-320.