Akhmedov Sherzod Anvarhon ugli and Latipov Mamurjon (2021) “Investigation Of The Effect Of Travel Speed And Tire Pressure On The Depth Of The Wheel Rut Of A Tractor With Adjustable Ground Clearance, On The Hardness And On The Density Of The Soil”, The American Journal of Applied Sciences, 3(11), pp. 54–58. doi: 10.37547/tajas/Volume03Issue11-10.