Nguyễn Văn, Hải. 2021. “Selecting Application of the Training System to Promote the Recovery Process After Training and Competing for the Young Footballers at the Age 14 to 15 of The Sport Center at Tan Trao University”. SCIENTIFIC JOURNAL OF TAN TRAO UNIVERSITY 6 (15):100-103. https://doi.org/10.51453/2354-1431/2020/311.