Richterich, Rene
Identifying the needs of adults learning a foreign language
Pergamon Press, 1980
 Buku Teks
Stevick, Earl W.
Teaching and learning languages
Cambridge University Press, 1982
 Buku Teks
Approaches to teaching foreign languages
edited by M.G. Hesse
North-Holland, 1975
 Buku Teks
Huebener, Theodore
Audio-visual techniques In teaching foreign languages: a practical handbook
New York University Press, 1967
 Buku Teks
Richards, Jack C.
Approaches and methods in language teaching
Cambridge University Press, 2006
 Buku Teks