Barlow, Richard E.
Society for Industrial and Applied Mathematics, 1996
eBooks
Sheps, Mindel C.
Chicago Press, 1973
Buku Teks
Edelstein-Keshet, Leah
Society for Industrial and Applied Mathematics, 2005
eBooks
edited by Gregory C. Chow and Paolo Corsi
John Wiley & Sons, 1982
Buku Teks
Jones, A.J.
Ellis Horwood and John Wiley & Sons, 1980
Buku Teks