Coon, Horace
Speak better write better English : what you can do with words; what words can do for you / Horace Coon
A Signet Key Book, 1954
 Buku Teks SO
Seyler, Dorothy U.
Read, reason, write
McGraw-Hill, 1999
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Berry, Ralph
The Research Project : How to Write it.
London : ROUTLEDGE, 1994,
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Berry, Ralph
The research project: how to write it
Routledge, 1994
 Buku Teks SO
Crego, Edwin T.
How to write a business plan
[American Management Association;, ], 1995
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