1. Erdogan, D., Colak, A., Acar, A.I.: Melioration Machine. Ankara University, Faculty of Agriculture: 1519 (2001) (in Turkish)
2. Kadayıfcılar, S., Onurbas, A.: Melioration Machine Applications. Ankara University, Faculty of Agriculture: 1483 (1997) (in Turkish)
3. Yılmaz, D., Akinci, I., Canakci, M.: Failure and failure analysis on machine element. In: National Agricultural Mechanization Congress Proceedings, vol. 20, pp. 568–572. Harran University, Turkey (2001) (in Turkish)
4. Akinci, I., Yilmaz, D., Canakcı, M.: Failure of a rotary tiller spur gear. Eng. Fail. Anal. 12, 400–404 (2005)
5. Nanaware, G.K., Pable, M.J.: Failure of rear axle shafts of 575 Di Tractors. Eng. Fail. Anal. 10, 719–724 (2003)