Bolivian Sign LanguagePrint 350 to 400 (1988 E. Powlison).
Cochabamba, La Paz, Riberalta, Santa Cruz. Based on American
Sign Language [ase] with necessary changes for borrowed Spanish
lexical items. Some groups in La Paz and Santa Cruz use the same
signs with some dialect signs from their own areas. There is
evidence that Bolivian Sign Language is no more divergent from
ASL [ase] than some dialects of ASL (Morgan 2004). Originated by
missionaries. Other deaf schools use only the oralist approach.