1. The strong domination number of a graph and related concepts;Acharya;J. Math. Phys. Sci.,1980
2. On the n-clique chromatic number of complementary graphs;Achuthan;Ann. Discrete Math.,1980
3. On the Nordhaus–Gaddum class problems;Achuthan;Australas. J. Combin.,1990
4. On defective colourings of complementary graphs;Achuthan;Australas. J. Combin.,1996
5. On the Nordhaus–Gaddum problem for the n-path-chromatic number of a graph;Achuthan;J. Combin. Math. Combin. Comput.,1998