Brauer, Fred
W.A. Benjamin, 1968
Buku Teks
Birkhoff, Garrett
John Wiley & Sons, 1978
Buku Teks
Carrier, George F.
Society for Industrial and Applied Mathematics, 1991
eBooks
Hartman, Philip, 1915-
Society for Industrial and Applied Mathematics, 2002
eBooks
Hsu, Sze-Bi
World Scientific, 2013
Buku Teks SO