1. Basic Color Terms: Their Universality and Evolution;Berlin,1969
2. Pronouns;Bhat,2004
3. Inflectional morphology;Bickel,2007
4. Cysouw, M., 2004a. Interrogative words: an exercise in lexical typology. Workshop on Bantu grammar, Max Planck Institute for Evolutionary Anthropology. Available from http://email.eva.mpg.de/∼cysouw/pdf/cysouwQUESTION.pdf.
5. Cysouw, M., 2004b. Minimal systems of interrogative words. Workshop on questions, Max Planck Institute for Evolutionary Anthropology. Available from http://email.eva.mpg.de/∼cysouw/pdf/cysouwHANDMINQ.pdf.