1. Toward a generalized theory of uncertainty (GTU)––an outline
2. J.N. Mordeson, P.S. Nair, Fuzzy Graphs and Fuzzy Hypergraphs, Physica-verlag.
3. A. Rosenfeld, Fuzzy graphs, In: L.A. Zadeh, K. S. Fu and M.Shimura Eds, Fuzzy sets and their Applications, Academic Press, New York, (1975) 77–95.
4. Domination in fuzzy graphs – I
5. Sunil Mathew and M.S. Sunitha, Fuzzy Graphs, Basic Concepts and Applications. Lap Lambert Academic Publishing, 2012.