1. Structural Mechanics: Graph and Matrix Methods (3rd edn). Research Studies Press, Wiley: UK, 2004.
2. Optimal Structural Analysis. Research Studies Press, Wiley: UK, 1997.
3. Algebraic Graph Theory (2nd edn). Cambridge University Press: Cambridge, 1993.
4. Spectra of Graphs, Theory and Applications. Academic Press: New York, 1980.
5. Graphs and Their Spectra, Combinatorics and Graph Theory. PWN, Polish Scientific Publishing: Warsaw, 1989; 147-162.