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. 2019;1(Đặc biệt):231. Accessed October 16, 2024. http://tckhupes1.edu.vn/index.php/upes1/article/view/1619