“Selecting physical exercises on Precor machine to develop Delta muscle group for first-year specialized students of gymnastics, Hanoi University of Sports and Physical Education” (2019) Tạp chí khoa học Đào tạo và Huấn luyện Thể thao, 1(Đặc biệt), p. 544. Available at: http://tckhupes1.edu.vn/index.php/upes1/article/view/1856 (Accessed: 16 October 2024).