Nasri, Muhammad Aiman, and Mohamad Farid Sies. “Investigation on the Air Filter With Industrial Ducting System”. Research Progress in Mechanical and Manufacturing Engineering 2, no. 2 (January 17, 2022): 399–405. Accessed August 15, 2026. https://periodical.uthm.edu.my/index.php/rpmme/article/view/4015.