1. David J Griffiths, Introduction to Quantum Mechanics, Pearson Prentice Hall, Upper Saddle River, NJ, 2005.
2. Peter W Atkins and Ronald S Friedman, Molecular Quantum Mechanics, Fifth Edition, Oxford University Press; 2010.
3. D A McQuarrie and J D Simon, Physical Chemistry: A Molecular Approach, University Science Books, Herndon, VA, 1997.
4. http://www.users.csbsju.edu/frioux/c60/C60QMSymmetry.pdf
5. Masaru Kuno, Introductory Nanoscience, First Edition, Garland Science, New York, 2011.