Nugroho NA, Purnama SK, Riyadi S, Syaifullah R, Utama DDP. Serve exercises with eastern and continental grips which is better for beginners improve skills. J. Hum. Sport Exerc. [Internet]. 2023 Oct. 2 [cited 2024 May 13];19(1):15-22. Available from: https://www.jhse.ua.es/article/view/serve-exercises-eastern-continental-grips-beginners-skills