Coleman, Rodney
George Allen & Unwin, 1974
Buku Teks
Parzen, Emanuel, 1929-
Society for Industrial and Applied Mathematics, 1999
eBooks
Ash, Robert B.
Academic Press, 1975
Buku Teks
Narayan Bhat, U.
John Wiley & Sons, 1972
Buku Teks
Wetzell, A.D.
McGraw-Hill, 1981
Buku Teks