1. Historias, leyendas y tradiciones de Cartagena, t. IV;Arcos Dr. (Camilo Delgado),1913
2. lme4: Linear Mixed-effects Models Using Eigen and S4. R package version 1.1-12;Bates,2016
3. Palenquero: a Spanish-based creole of northern Colombia;Bickerton;Lingua,1970
4. PRAAT: Doing Phonetics by Computer;Boersma,1999
5. Diccionario lengua afro palenquero-español;Cásseres Estrada,2005