“EXPERIMENTAL SUBSTANTIATION OF DIFFERENTIATED PHYSICAL PREPARATION OF 5TH-7TH GRADE STUDENTS IN SCHOOL PHYSICAL EDUCATION LESSONS”, AJR, vol. 1, no. 3, pp. 112–117, Mar. 2026, Accessed: Jun. 06, 2026. [Online]. Available: https://researchiapress.com/index.php/4/article/view/144