Papadimitriou, Christos H., author
Prentice Hall of India, 1997
Buku Teks
Shier, Douglas R., author
Oxford University Press, 1991
Buku Teks
edited by Boris Goldengorin, Panos M. Pardalos
Springer, 2012
eBooks
Foulds, L.R.
Springer, 1984
Buku Teks
Kandasamy, W.B. Vasantha, author
Phoenix, 2005
Buku Teks