Ostwald, Philip F.
Cost analysis and estimating for engineering and management
Pearson - Prentice Hall, 2004
 Buku Teks
Ostwald, Philip F.
Cost estimating for engineering and management/Philip F. Ostwald
Prentice-Hall, 1974
 Buku Teks
Buratto, Lucio
Phacoemulsification principles and techniques
SLACK , 2003
 Buku Teks
Schellecnberg, T.R.
Modern arachives : principles and techniques
University of Chicago Press , 1956
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Graham, Benjamin, 1894-1976
Security analysis : principles and techniques
McGraw-Hill, 1962
 Buku Teks