Scott, C. R.
Applied Science Publishers Ltd, 1974
Buku Teks
Atkinson, John, author
McGraw-Hill, 1993
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Buhdhu, Muni, author
John Wiley & Sons, 2011
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Punmia, B.C., author
Standard Book House, 1981
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Tschebotarioff, Gregory P., author
McGraw-Hill, 1951
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