Aslonov Xayrullo shukrullo o’g’li, Nematullayev Abdulaziz Murodjon o’g’li and Jaloldinov Izzatullo Xusanboy o’g’li 2023. DEVISSON VA JERMER TAJRIBALARI. Journal of new century innovations. 42, 2 (Dec. 2023), 196–201.