Gurban S, Zhiembaev A, Zeybel V. Popularization of physical activity in rural schools of Kazakhstan’s Aktobe region. PROSOC [Internet]. 2022 Apr. 21 [cited 2024 Dec. 30];9(1):31-42. Available from: https://un-pub.eu/ojs/index.php/pntsbs/article/view/7093