J. Marzoog, Rasha, Ahmed A. Alduroobi, and Sawsan S. Al-Zubaidy. “Complex Surface Representation and Machining Time Estimation Upon Three Types of End Mill Cutter”. Engineering and Technology Journal 37, no. 9A (September 25, 2019): 354-358. Accessed November 29, 2020. http://engtechjournal.org/index.php/et/article/view/62.