Saipul Azmi Mohd Hashim, Ahmad Zhafri Zainudin, and Mohanadas Kanagaraj. 2019. “Modelling Titanium Machined Workpiece Qualities Using Fuzzy Logic”. Politeknik & Kolej Komuniti Journal of Engineering and Technology 4 (1). Putrajaya, Malaysia:159-71. https://app.mypolycc.edu.my/journal/index.php/PMJET/article/view/262.