1. J. Benes, Cutting Difficult-to-Machine Materials, 01/24/2007, 〈http://www.americanmachinist.com/304/Issue/Article/False/44740/Issue〉 (last accessed on March 26, 2011).
2. An evaluation of difficulty in machining difficult-to-cut materials by using difficult-to-cut rating;Yasuo;Journal of the Japan Society for Precision Engineering,2004
3. ED machining of WC–Co;Mahdavinejad;Journal of Materials Processing Technology,2005
4. Sandvik CIC Rolls, Machining of Cemented Carbide, Sandvik Hard Materials, Scheydgass, 44A 1211 Wien.
5. Ductile cutting of tungsten carbide;Liu;Journal of Materials Processing Technology,2001