Elsevier, 2013
eBooks
Narayan Bhat, U.
John Wiley & Sons, 1972
Buku Teks
Hernandez, Daniel
[, Springer], 2012
eBooks
Parzen, Emanuel, 1929-
Society for Industrial and Applied Mathematics, 1999
eBooks
Coleman, Rodney
George Allen & Unwin, 1974
Buku Teks SO