Narzullayev, Farrukh Ashrafovich, and Ruslan Rustamovich Khamroyev. “Pedagogical Basis Of Physical Training In Young Volleyball Players: Age Characteristics And Norms-Criteria”. TLEP – International Journal of Multidiscipline, vol. 3, no. 3, Apr. 2026, pp. 152-7, https://www.tlepub.org/index.php/1/article/view/905.