Richards, Jack C.
Approaches and methods in language teaching
Cambridge University Press, 2015
 Buku Teks SO
Richards, Jack C.
Approaches and methods in language teaching : a discription and analysis
Cambridge University Press, 1994
 Buku Teks SO
Morris, I.
The teaching of english as a second language : principles and methods
Macmillan, 1950
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Approaches to teaching foreign languages
edited by M.G. Hesse
North-Holland, 1975
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New approaches to language acquisition
edited by Bernhard Kettemann and Robert N. St. Clair
Gunter Narr Verlag Tubingen, 1980
 Buku Teks SO