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2. J. Jamari, Running-in of rolling contacts (Ph.D. thesis), University of Twente, 2006, Zutphen, The Netherlands.
3. Microstructure and Wear of Materials;Zum Gahr,1987
4. R. Ismail, M. Tauviqirrahman, J. Jamari, D.J. Schipper, Topographical Change of Engineering Surface due to Running-in of Rolling Contacts, New Tribological Ways, InTech, 2011.
5. ASTM International, Standard Terminology Relating to Wear and Erosion, Designation G40-13.