Blalock, Hubert M., author
Prentice-Hall, 1969
Buku Teks
Barlow, Richard E., author
Society for Industrial and Applied Mathematics, 1996
eBooks
Henderson, James M., author
McGraw-Hill, 1980
Buku Teks
Barnett, Stephen, author
Clarendon Press, 1990
Buku Teks
Baldock, G.R., author
Ellis Horwood, 1981
Buku Teks