Lal, Deepak
The World Bank, 1974
Buku Teks
Sualrez, Francisco, author
Clarendon press: London, H. Milford, 2004
Buku Teks
edited by Murray S. Klamkin
Society for Industrial and Applied Mathematics, 1990
eBooks
Vanhoucke, Mario, author
[Springer, ], 2012
eBooks
Vanhoucke, Mario, author
Springer, 2013
Buku Teks