Richards, Jack C.
Approaches and methods in language teaching
Cambridge University Press, 2006
 Buku Teks
Richards, Jack C.
Approaches and methods in language teaching
Cambridge University Press, 1994
 Buku Teks
Richards, Jack C.
The Context of language teaching
Cambridge University Press, 1985
 Buku Teks
Richards, Jack C.
The Language teaching matrix
Cambridge University Press, 1994
 Buku Teks
Mackey, William Francis
Language teaching analysis
Longman, 1966
 Buku Teks SO