Miller, George A. (George Armitage), 1920-2012, author
Harper & Row , 1962
Buku Teks
edited by Heinz Katschnig, Hugh Freeman and Norman Sartorius
John Wiley & Sons, 2006
Buku Teks
Drew, Clifford J., author
A Bell & Howell Company, 1986
Buku Teks
Belk, Collen
Pearson - Benjamin Cummings, 2008
Buku Teks
Belk, Collen, author
Pearson Prentice Hall, 2007
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