a -Partite Graph » apartheid graft

http://en.wikipedia.org/wiki/Bipartite_graph

http://mathworld.wolfram.com/k-PartiteGraph.html

http://planetmath.org/encyclopedia/KPartiteGraph.html

http://en.wikipedia.org/wiki/Glossary_of_graph_theory

http://encyclopedia.kids.net.au/page/gr/Graph_theory

http://en.wikipedia.org/wiki/History_of_South_Africa_in_the_apartheid_era

http://en.wikipedia.org/wiki/South_Africa