Hager, Willi H.
Springer-Verlag, 1999
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Williams, James H.
John Wiley & Sons, 1996
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Ginsberg, Jerry H., 1944-, author
John Wiley & Sons, 1984
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McGraw-Hill, 1968
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Bolton, Arthur, 1921-, author
McGraw-Hill, 1994
Buku Referensi