James, L. Douglas (Leonard Douglas)
McGraw-Hill, 1971
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Goodman, Alvin S.
Prentice-Hall, 1984
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American Society of Civil Engineering, 2018
Majalah, Jurnal, Buletin
Kuiper, Edward
Butterworth, 1967
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Chaturvedi, M.C.
Tata McGraw-Hill, 1987
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