Horton, Sarah
Web teaching guide: a practical approach to creating course web sites
Yale University Press, 2000
 Buku Teks
Sharma, R.C.
Business correspondence and report writing: a practical approach to business & technical communication
Tata McGraw-Hill, 2002
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Barnet, Sylvan
Barnet and stubbss practical guide to writing
Little, Brown, 1980
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Bailey, Edward P.
Writing clearly: a contemporary approach
Charles E. Merrill, 1984
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Arithmetic: a practical approach
Gershon J. Shugar ... [and others]
Glencoe Press, 1977
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