Meyer, Paul A.
Blaisdell , 1966
Buku Teks SO
Billingsley, Patrick
Society for Industrial and Applied Mathematics, 1971
eBooks
Snell, J. Laurie (James Laurie), 1925-
McGraw-Hill , 1989
Buku Teks SO
Snell, J. Laurie (James Laurie), 1925-
Random House, 1987
Buku Teks SO
Roussas, George G.
Academic Press, 2014
eBooks