Muhammademinov Alijon Azizjon o‘g‘li, and Mamadaliyev Husanbek Ulug‘bek o‘g‘li. “BIRINCHI TARTIBLI OPERATOR KOEFFITSIENTLI DIFFERENSIAL TENGLAMALAR”. TADQIQOTLAR.UZ, vol. 39, no. 5, June 2024, pp. 64-66, http://tadqiqotlar.uz/index.php/new/article/view/3638.