Eggert, Rudolph J., author
Pearson/Prentice Hall, 2005
Buku Teks
Gupta, Vijay, author
Tata McGraw-Hill, 1980
Buku Teks
Karsnitz, John R., author
Delmar Cengage Learning, 2013
Buku Teks
Woodson, Thomas T., author
McGraw-Hill, 1966
Buku Teks
Jack, Hugh, author
Academic Press, 2013
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