[1]
Amelia, S.R. et al. 2022. Effectiveness of exercise program on abdominal muscular endurance and 20 meters running speed during covid-19 pandemic. Gladi : Jurnal Ilmu Keolahragaan. 13, 04 (Dec. 2022), 435–441. DOI:https://doi.org/10.21009/GJIK.134.08.