Puchta, Herbert
English in mind : student's book 3
Cambridge University Press, 2010
 Buku Teks SO
Pack, Alice C.
Writing and combining standard english sentences book 1
Newbury House Pub., 1980
 Buku Teks SO
Levy, Wilbert J.
Writing english : foundations
Amsco School, 1982
 Buku Teks SO
French, F. G.
Self-help exercises for practice in English; Book III
Oxford University Press, 1947
 Buku Teks SO
Wallwork, Adrian
English for writing research papers
Springer, 2016
 Buku Teks