Nortajiyev , H. . . . . M. . o‘g‘li, and H. S. Toshboyev. “VOL’TERRA INTEGRAL TENGLAMALARIGA KELADIGAN BA’ZI MASALALAR”. INTERNATIONAL СONFERENCE ON LEARNING AND TEACHING, vol. 1, no. 8, May 2022, pp. 581-5, https://researchedu.org/index.php/iclt/article/view/2263.