Ramli, R., T. Aji, S. Suwardi, N. Yanti, and M. Hanafi. “Eye-Foot Coordination and Balance With Serving Ability: A Correlation Study in Sepak Takraw Game”. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran, Vol. 9, no. 3, Dec. 2023, pp. 483-95, doi:10.29407/js_unpgri.v9i3.21217.