Bishop, Errett
Springer-Verlag , 1985
Buku Teks SO
Rao, M.M.
Academic Press, 1981
Buku Teks
Budevsky, O.
Ellis Horwood, 1979
Buku Teks
editors, Richard C. Smardon, James F. Palmer, John P. Felleman
John Wiley & Sons, 1986
Buku Teks
Ponnusamy, S.
Springer, 2012
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