1. Investigations on power requirement of active-passive combination tillage implement;Anpat;Eng. Agric. Environ. Food,2017
2. Terminology and Definitions for Agricultural Tillage Implements;ASABE Standards,2006
3. Agricultural Machines, Theory and Construction;Bernacki,1972
4. Performance of selected tillage implements;Bukhari;Agric. Mechanization Asia, Africa Latin America,1988
5. Development and performance of a high output rotary digger;Chamen;J. Agric. Eng. Res.,1979