Frontier of foreign language education
Osaka University
Osaka University, 2020
 Buku Teks SO
Language and language learning
edited by Albert H. Marckwardt
National Council of Teachers of English, 1968
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Richards, Jack C.
The Context of language teaching
Cambridge University Press, 1985
 Buku Teks SO
Richards, Jack C.
The Language teaching matrix
Cambridge University Press, 1994
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Stevick, Earl W.
Images and options in the language classroom
Cambridge Cambridge University Press 1991,
 Buku Teks SO