Baltayeva Barchinoy Davronbekovna. METHODOLOGY IMPROVEMENT OF INDIVIDUAL PRIMARY CHESS TRAINING FOR CHILDREN OF YOUNGER SCHOOL AGE. eijmr [Internet]. 2026 Feb. 22 [cited 2026 Feb. 23];13(2):1161-5. Available from: https://eijmr.org/index.php/eijmr/article/view/5252