↑Martins, Valteir. 2005. Reconstrução Fonológica do Protomaku Oriental. LOT Dissertation Series. 104. Utrecht: LOT Netherlands Graduate School of Linguistics. (Doctoral dissertation, Vrije Universiteit Amsterdam).
↑Moore, D. & Vilacy Galucio, A. (1994). Reconstruction of Proto-Tupari consonants and vowels. In Langdon, M. (eds.), Survey of California and Other Indian Languages, Report 8. 119-30, Columbus: Ohio State University. DiACL, consultado em 9 febrero 2020.