1. Ward, I. M.: Structure and properties of oriented polymers, Applied Science Publishers, London, (1975)
2. “Developments in Oriented Polymers — 1”, edited by I. M. Ward, Appl. Sci. Publ., London (1982)
3. Ferry, J. D.: Viscoelastic Properties of Polymers, 3rd Ed., J. Wiley, New York (1980)
4. McCrum, N. G., Read, B. E., Williams, G.: Anelastic and Dielectric Effects in Polymeric Solids, Wiley, New York (1967)
5. Ward, I. M.: Mechanical Properties of Solid Polymers, Wiley, New York (1971)