Sies, Mohamad Farid, M. Zikrul M. Sharif, Maznan Ismon, Hanis Zakaria, M. Nur Hidayat Mat, and M. Amran Madlan. “Relation Between Velocity and Pressure in Circular and Non-Circular Shape Duct for Local Exhaust Ventilation (LEV) System”. Journal of Advanced Mechanical Engineering Applications 3, no. 1 (July 20, 2022): 16–24. Accessed July 18, 2024. https://publisher.uthm.edu.my/ojs/index.php/jamea/article/view/10991.