Mak Zhen Wei, and Azli Nawawi. “Design Improvement and Cost Reduction of a Hair Dryer: A DFMA and Value Engineering Approach”. Progress in Engineering Application and Technology 5, no. 1 (June 10, 2024): 478–488. Accessed August 15, 2026. https://periodical.uthm.edu.my/index.php/peat/article/view/14299.