Fiedler, Judith
Jossey-Bass Publishers, 1978.
Buku Teks
O`Leary, Dianne P., author
Society for Industrial and Applied Mathematics, 2009
eBooks
Ballou, Ronald H.
Prentice Hall International I, 1992
Buku Teks
Christopher, Martin, author
Prentice-Hall, 2005
Buku Teks
Blanchard, Benjamin S., author
Prentice-Hall, 1992
Buku Teks