“Study on physical exercises to improve sit-style long jump performance of 8th-grade female students in Kien Binh secondary school, Kien Luong district, Kien Giang province”, jstsc, vol. 1, no. Đặc biệt, p. 231, Dec. 2019, Accessed: Dec. 27, 2024. [Online]. Available: https://tckhupes1.edu.vn/index.php/upes1/article/view/1770