Hays, William L. (William Lee), 1926-1995, author
Holt, Rinehart and Winston, 1971
Buku Teks
Billingsley, Patrick, author
John Wiley & Sons, 1979
Buku Teks
Buku Teks
Cohn, Donald L., 1942-, author
Birkhäuser,, 2013
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Doob, Joseph L., author
Springer-Verlag , 1994
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