Dio Alif Airlangga Daulay, Iman Sulaiman, & Fatah Nurdin. (2021). GAME-BASED BACKHAND TENNIS TECHNIQUE LEARNING MODEL TO IMPROVE LEARNING OUTCOMES. Gladi : Jurnal Ilmu Keolahragaan, 12(04), 269–280. https://doi.org/10.21009/GJIK.124.06