Thornley, G. C.
Scientific English practice / G. C. Thornley
Longmans, Green and Co., 1965
 Buku Teks SO
Dowling, Barbara Tolley
Business concepts for English practice
Newbury House Publishers , 1982
 Buku Teks SO
Ewer, J.R.
A course in basic scientific English
Longman, 1969
 Buku Teks SO
French, F. G.
Self-help exercises for practice in English; Book III
Oxford University Press, 1947
 Buku Teks SO
Drummond, Gordon
English sentence patterns and multi-level practice exercises with grammar notes
Essex Longman, 1972
 Buku Teks SO