Artikel Jurnal
Barlow, Richard E.
Society for Industrial and Applied Mathematics, 1996
eBooks
Sheps, Mindel C.
Chicago Press, 1973
Buku Teks SO
Edelstein-Keshet, Leah
Society for Industrial and Applied Mathematics, 2005
eBooks
edited by Frank M. Bass ... [and others]
Richard D. Irwin, 1961
Buku Teks SO