1. Characterization of digraphs of right (left) zero unions of groups;Arworn;Thai J. Math.,2003
2. Algebraic Graph Theory;Biggs,1993
3. Graphs and Digraphs;Chartrand,1996
4. Cayley graphs and interconnection networks;Heydemann,1997
5. On undirected Cayley graphs;Kelarev;Australas. J. Combin.,2002