1. 2018 Yearbook of Energy Statistics – Korea Energy Economics Institute http://www.keei.re.kr/keei/download/YES2018.pdf
2. Gutowski T, Dahmus J, Thiriez A. Electrical energy requirements for manufacturing processes. In 13th CIRP international conference on life cycle engineering (2006, May;31[1]:623–638). CIRP International Leuven, Belgium.
3. Analysis of energy consumption in CNC machining centers and determination of optimal cutting conditions;Calvanese,2013
4. An interoperable energy consumption analysis system for CNC machining;Peng;J Clean Prod,2017
5. An energy consumption optimization strategy for CNC milling;Ma;Int J Adv Manuf Technol,2017