Encyclopaedia of Australia/Compiled by Andrew & Nancy Learmonth
Sydney Hicks,Smith & Sons Pty LTD 1973,
 Buku Referensi
Wilson, Jerry S.
Managing brand you: 7 seven steps to creating your most successful self
American Management Association;, 2008
 eBooks
Winsor, Janice
Solaris 7 reference
Sun Microsystems Press, 1999
 Buku Referensi
Katz, William A., 1924-
Your library : a reference guide
Holt, Rinehart and Winston, 1979
 Buku Teks SO
Reference : wordperfect presentations version 2.0
WordPerfect Corporation, 1992
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