edited by Peter Krass
John Wiley & Sons, 1997
Buku Teks
Johnson, Joseph French
Alexander Hamilton Institute, 1962
Buku Teks
Kofman, Fred, author
Sounds True , 2006
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Reynolds, Russell S., Jr., author
McGraw-Hill, 2012
Buku Teks
Hendro, author
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Buku Teks