Gear, Jolene, author
Cambridge preparation for the toefl test
Cambridge university press, 2010
 Buku Teks
Black, Michael, author
Objective IELTS intermediate student's book
Cambridge University Press, 2010
 Buku Teks
Black, Michael, author
Objective IELTS advanced student's book
Cambridge University Press, 2008
 Buku Teks
Robinson, Lois
Guided writing and free writing: a text in composition for english as a second language / Lois Robinson
Harper & Row , 1967
 Buku Teks
Boyd, Elaine, author
Objective IELTS.
Cambridge University Press, 2006
 Multimedia
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