1. An excellent introduction to the concept of the extent of reaction — G D Peckham, The extent of reaction: Some nuts and bolts, J. Chem. Educ., 78, pp.508–509, 2001.
2. Donald McQuarrie, John D. Simon, Molecular Thermodynamics, University Science Book, Sausalito, California, USA, 1997.
3. Peter Atkins, Julio de Paula, Atkins’ Physical Chemistry, Oxford University Book, Oxford, UK, 2014.
4. Ira N. Levine, Physical Chemistry, McGraw-Hill, New York, USA, 2009.
5. Robert J. Silbey, Robert A. Alberty, and Moungi G. Bawendi, Physical Chemistry, John Wiley & Sons, Inc. Hoboken, USA, 2005.