Unseth, Peter. Fishman, Joshua A.; García, Ofelia , 编. Handbook of Language and Ethnic Identity: The Success-Failure Continuum in Language and Ethnic Identity Efforts 2. New York: Oxford University Press. 2011: 23–32. ISBN 978-0-19-983799-1.
Kelly, Piers, James Winters, Helena Miton, and Olivier Morin. "The predictable evolution of letter shapes: An emergent script of West Africa recapitulates historical change in writing systems." Current Anthropology 62, no. 6 (2021):669-691.
Kelly, Piers, James Winters, Helena Miton, and Olivier Morin. "The predictable evolution of letter shapes: An emergent script of West Africa recapitulates historical change in writing systems." Current Anthropology 62, no. 6 (2021). [on simplifications over time for Vai symbols]
Tuchscherer, Konrad. 2005. "History of Writing in Africa." In Africana: The Encyclopedia of the African and African American Experience (second edition), ed. by Kwame Anthony Appiah and Henry Louis Gates, Jr., pp. 476–480. New York: Oxford University Press.
Tuchscherer, Konrad. 2002 (with P.E.H. Hair). "Cherokee and West Africa: Examining the Origins of the Vai Script," History in Africa, 29, pp. 427–486.
Tuchscherer, Konrad. 2001. "The Vai Script," in Liberia: Africa's First Republic (Footsteps magazine). Petersborough, NH: Cobblestone Press.
Tykhostup, Olena and Piers Kelly. 2017. "A diachronic comparison of the Vai script of Liberia (1834–2005)." Journal of Open Humanities Data 4:2. doi:10.5334/johnd.10.
