“METHODOLOGY FOR DEVELOPING FLEXIBILITY IN MIDDLE SCHOOL GIRLS (GRADES 5–9) WITHIN THE FRAMEWORK OF DIFFERENTIATED PHYSICAL TRAINING” (2025) Scientific journal of the Fergana State University, 30(6), p. 31. Available at: https://journal.fdu.uz/index.php/sjfsu/article/view/5981 (Accessed: 9 January 2026).