*Benedicto, Elena & Kenneth Hale, (2000) "Mayangna, A Sumu Language: Its Variants and Its Status within Misumalpa", in E. Benedicto, ed., "The UMOP Volume on Indigenous Languages", UMOP 20, pp.
* Benedicto, Elena & Kenneth Hale, (2000) «Mayangna, A Sumu Language: Its Variants and Its Status within Misumalpa», in E. Benedicto, ed., «The UMOP Volume on Indigenous Languages», UMOP 20, pp.