[1]
S. R. . Amelia, A. S. Hanif, F. Nurdin, H. Hermawan, and F. H. P. Yudho, “Effectiveness of exercise program on abdominal muscular endurance and 20 meters running speed during covid-19 pandemic”, GJIK, vol. 13, no. 04, pp. 435–441, Dec. 2022.