Khurmetullaevna, U. Z. . “The System of Activities for Learning English Speech Etiquette for 8-9 Grade Karakalpak Students”. The Journal of Contemporary Issues in Business and Government, vol. 27, no. 1, Feb. 2021, pp. 3885-96, https://cibgp.com/au/index.php/1323-6903/article/view/832.