Walters, Joel
Bilingualism : the sociopragmatic-psycholinguistic interface
Lawrence Erlbaum Associates, 2005
 Buku Teks
The handbook of bilingualism and multilingualism
edited by Tej K. Bhatia and William C. Ritchie
Wiley Blackwell, 2014
 Buku Teks SO
Noor Azam Haji-Othman
Bilingualism and Bruneian identity / Noor Azam Haji-Othman
ISEAS/BUFS, 2016
 Artikel Jurnal
Appel, René
Language contact and bilingualism
Amsterdam Academic Archive, 2005
 Buku Teks
Paradis, Michel
A neurolinguistic theory of bilingualism / michel Paradis
John Benjamins , 2004
 Buku Teks SO