A. Chaedar Alwasilah
Language, culture, and education : a portait of contemporary Indonesia
Andira, 2002
 Buku Teks SO
Linguistic ecology and language contact
edited by Ralph Ludwig, Peter Mühlhäusler and Steve Pagel
Cambridge University Press, 2019
 Buku Teks SO
Ahearn, Laura M. author
Living Language : An Introduction to Linguistic Anthropology
John Wiley &​ Sons, Incorporated,, 2016
 Buku Teks SO
Language policy / Bernard Spolsky
Cambridge University Press, 2004
 eBooks
The Cambridge handbook of language policy
edited by Bernard Spolsky
Cambridge University Press, 2012
 eBooks