Voiles, Price R.
Business English essentials
Glencoe, 1993
 Buku Teks SO
Ibbotson, Mark
Cambridge English for engineering
Cambridge University Press, 2008
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Camp, Sue C.
Developing proofreading and editing skills
McGraw-Hill, 2001
 Multimedia
Camp, Sue C.
Developing proofreading and editing skills
Glencoe/McGraw-Hill, 2001
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Jaderstrom, Susan
Business English at work
McGraw-Hill Glencoe, 2003
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