Narziqulov Sirojiddin Valijon o’g’li, Shomiddinov Sherdor Sherali o’g’li, Nurmamatov Diyorbek O’roqboy o’g’li and Sharipova Sadoqat Fazliddinovna 2023. KO’P O’ZGARUVCHILI FUNKSIYALARNI DIFFERANSIALLASH . Journal of new century innovations. 27, 5 (Apr. 2023), 9–12.