Wahyuniati, C. F. S., F. Hidayatullah, S. K. Purnama, and S. Siswanyoto. “Knowledge of Sports Teachers in a Rhythmic Gymnastics Training Program”. KnE Social Sciences, Vol. 6, no. 2, Dec. 2021, pp. 689–699, doi:10.18502/kss.v6i2.10026.