edited by Sanford Berman
Haworth Press, 1984
Buku Teks SO
Stewart, G.W.
Society for Industrial and Applied Mathematics, 1998
eBooks
edited by Steven J. Klees, Joel Samoff, Nelly P. Stromquist
Sense, 2012
eBooks
Hunter, Lynette
Routledge, 1999
Buku Teks SO
Bovini, Giuseppe
Fratelli Lega Editori,
Buku Teks SO