Khoirudin, Dwi, Henri Gunawan Pratama, Danang Ari Santoso, and Baskoro Nugroho Putro. 2023. “The Impact of Drill Exercise and Games Approach on Improving Under-Passing Ability in Adolescent Female Volleyball Athletes”. Physical Education and Sports: Studies and Research 2 (2):142-51. https://doi.org/10.56003/pessr.v2i2.276.