1. Proceedings of the Conference on Lubrication and Wear,1957
2. “Lubrication and Wear” Fundamentals and Application to Design”, Proceedings of The Institution of Mechanical Engineers, Volume 182, Part 3A, 1967
3. D. Dowson “A History of Tribology”, Longman, London, pp 677, 198.
4. Wear Control Handbook;Peterson,1980
5. Tribology handbook;Neale,1973