Sunarsieh, Sunarsieh, and Paulina Paulina. “The Use of Coconut Fiber Padded Seat in Reducing Vibration and Fatigue of Bus Drivers”. The Indonesian Journal of Occupational Safety and Health 11, no. SI (June 16, 2022): 1–9. Accessed January 6, 2025. https://e-journal.unair.ac.id/IJOSH/article/view/33211.