Aziz, Mohd Hazny, and Muhammad Azmi Ayub. “Measurement of Forces and Torques During Non Homogeneous Material Drilling Operation”. International Journal on Advanced Science, Engineering and Information Technology 1, no. 1 (February 1, 2011): 92–97. Accessed July 22, 2024. https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/22.