Abduvaliyev , Doniyorbek Baxromjon o‘g‘li, Diyorbek Olimboy o‘g‘li Mahmudov, and Siroj Ikrom o‘g‘li Sayfullayev. “RAQOBATNING MAZMUNI VA SHAKLLARI”. Educational Research in Universal Sciences 2, no. 4 SPECIAL (June 16, 2023): 1142–1144. Accessed November 22, 2024. http://erus.uz/index.php/er/article/view/3030.