1. Evdemosfera, URL: http://evdemosfera.narod.ru/issl/issl/ek_zemlia.html
2. Agroru, URL: www.agroru.com/blog/novinki_agromislennogo_kompleksa
3. Substantiation of improved dep softener parameters for plows in basic tillage;Murtazoev;Interim report on the project of young scientists on the topic,2018
4. Decree of the President of the Republic of Uzbekistan dated February 7, 2017 No PF-4947 “On action strategy for further development of the Republic of Uzbekistan”.
5. Substantiation of the parameters of the combination aggregate softener with minimal tillage: Dissertation;Mamadaliev,2010