Selamat, Rossitah, and Raemy Md Zein. “Ergonomic Risk Assessment of Backpack Leaf Blower Operation: A Case Study of Outdoor Cleaning Staff in a Malaysian Polytechnic”. Politeknik & Kolej Komuniti Journal of Engineering and Technology 10, no. 2 (November 30, 2025): 64–74. Accessed December 1, 2025. https://app.mypolycc.edu.my/journal/PMJET/article/view/770.