O`Kane, J.P., author
Pitman , 1980
Buku Teks
Sengupta, Jati K., author
North-Holland Pub. Co, 1975
Buku Teks
edited by W.T. Ziemba, R.G. Vickson
Academic Press, 1975
Buku Teks
Schwefel, Hans-Paul, author
John Wiley & Sons, 1977
Buku Teks
Davis, M.H.A., author
Chapman & Hall, 1993
Buku Teks