Brause, Rita S.
Writing your doctoral dissertation: invisible rules for success
RoutledgeFalmer , 2000
 Buku Teks SO
Hunt, William James
The C Toolbox
Addison-Wesley, 1985
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Tague, Nancy R.
The quality toolbox
ASQ Quality Press, 2005
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Wise, David
The invisible government
Random House , 1964
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Wells, H.G.
The invisible man
Gramedia Pusaka Utama, 2019
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