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4. Bradley, D.P., Hollenbach, B.E., 1988. Studies in the syntax of Mixtecan languages Vol. 1 1988 Summer Institute of Linguistics Dallas, TX Retrieved from https://www.sil.org/resources/archives/8534.
5. Bradley, C.H., 1970. A linguistic sketch of Jicaltepec Mixtec. Summer Institute of Linguistics, Norman, OK. Retrieved from https://www.sil.org/resources/archives/8627.