Royama, T.
Chapman & Hall, 1992
Buku Teks
Cushing, Jim M., 1942-
Society for Industrial and Applied Mathematics, 1998
eBooks
edited by Colleen K. Kelly, Michael G. Bowler, Gordon A. Fox
Cambridge University Press, 2013
Buku Teks
edited by Michael J. Crawley
Blackwell, 1992
Buku Teks
Forrester, Jay Wright
Wright-Allen Press, 1973
Buku Teks