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 [Internet]. 2019 Dec. 12 [cited 2024 Oct. 16];1(Đặc biệt):231. Available from: http://tckhupes1.edu.vn/index.php/upes1/article/view/1619