Singhapreecha, Pornsiri (2001). "Thai Classifiers and the Structure of Complex Thai Nominals"(PDF). Proceedings of the 15th Pacific Asia Conference on Language, Information and Computation, PACLIC 2001, Hong Kong, China, February 1–3, 2001: 259–270.
Matthews 2007, pp. 230–231. Matthews, Stephen (2007). "Cantonese Grammar in Areal Perspective". In Aikhenvald, Alexandra Y.; Dixon, R. M. W. (eds.). Grammars in Contact: A Cross-Linguistic Typology. Oxford: Oxford University Press. pp. 220–236. doi:10.1093/oso/9780199207831.003.0009. ISBN978-0-19-920783-1.
Dixon, Robert M. W. (2002). Australian languages : their nature and development. Cambridge, U.K.: Cambridge University Press. ISBN0-521-47378-0. OCLC70724682.