“Characteristics and Speed Strength Changes of Footwork in the People’s Public Security’s Martial Art of Male Students in Armed Police Intermediate School After 1 Year of Training”. 2019. Tạp Chí Khoa học Đào tạo Và Huấn luyện Thể Thao 1 (Đặc biệt): 409. https://tckhupes1.edu.vn/index.php/upes1/article/view/1666.