O`Rourke IV, James S., author
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Buku Teks
O`Rourke, James S., author
Prentice-Hall, 2013
Buku Teks
Hattersley, Michael E.
McGraw-Hill , 1997
Buku Teks
Greyser, Stephen A.
Prentice-Hall, 1972
Buku Teks
Hughes, G. David, author
Addison-Wesley, 1978
Buku Teks