Littlewood, William
Communicative language teaching : an introduction
Cambridge Uniiversity Press , 1983
 Buku Teks SO
Klippel, Friederike
Keep talking: communicative fluency activities for language teacing
Cambridge University Press, 1993
 Buku Teks SO
A communicative framework for introductory Japanese language curricula /
University of Hawaii at Manao, 2000
 Buku Teks SO
Communicative language testing : How teachers understand and apply it in constructing test items
 Artikel Jurnal
Fromkin, Victoria A.
An introduction to language
Holt, Rinehart and Winston, 1981
 Buku Teks SO