Zega, Yoepiter, et al. “INFLUENCE OF VARIATIONS OF AGILITY TRAINING ON INCREASING AGILITY IN EXTRACURRICULAR FUTSAL PLAYERS OF YAPIM MABAR SMA 2021”. Indonesia Sport Journal, vol. 5, no. 2, Dec. 2022, pp. 60-65, doi:10.24114/isj.v5i2.37888.