1. Vibration studies on tractor operators;Huang;Trans. ASAE,1961
2. Human Factors in Engineering and Design;Sanders,1987
3. Ride comfort for tractor operators—assessment of the ride quality of seats;Matthews;J. Agric. Engng Res.,1966
4. Health effects of tractor driving;Rosegger;J. Agric. Engng Res.,1960
5. Human tolerance to vibrations in farm machines;Haack;Agric. Engng,1965