^Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian (编). Lamu. Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History. 2016.
Bradley, David. 2004. [1] (页面存档备份,存于互联网档案馆)(云南中部的濒危中部彝语). Keynote Presentation, 37th International Conference on Sino-Tibetan Languages and Linguistics, Lund University, Sweden. (附有拉姆语词表)
Bradley, David (2007). "Language Endangerment in China and Mainland Southeast Asia". In Matthias Brenzinger, ed. Language diversity endangered. New York: Mouton de Gruyter.