1. F.E. Close, “At Introduction to Quarks and Partons”, Academic Press, New York (1979).
2. E. Leader and E. Predazzi, “An Introduction to Gauge Theories and the New Physics”, Cambridge (1982).
3. T. Muta, “Foundations of Quantum Chromodynamics”, World Scientific, Singapore (1987).
4. C.T.C. Sachrajda, in “Gauge Theories in High Energy Physics”, North Holland, Amsterdam (1983).
5. F. Yndurain, “Quantum Chromodynamics”, Springer, Berlin (1983).