Peters, Herman Jacob, 1917-
Introduction to teaching
Macmillan, 1963
 Buku Teks
Littlewood, William
Communicative language teaching : an introduction
Cambridge Uniiversity Press , 1983
 Buku Teks
Littlewood, William
Communicative language teaching : an introduction
Cambridge University Press, 1994
 Buku Teks
Littlewood, William
Comnunicative language teaching : an introduction
Cambridge University Press, 1998
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Plummer, David T.
An introduction to practical biochemistry
MacGraw-Hill, 1978
 Buku Teks