Roman, Steven
Fundamentals of group theory: an advanced approach
Springer Science, 2012
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Fern, Edward F.
Advanced focus group research
Sage, 2001
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Afshar, Amir
Principles of semiconductor network testing
Butterworth-Heinemann, 1995
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Freeman, Frank S.
Theory and practice of psychological testing
Holt, Rinehart and Winston, 1960
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McConnell, Kenneth G.
Vibration testing : theory and practice
John Wiley & Sons, 2008
 Buku Teks