Gultom, Pebrian, et al. “ Contribution Of Arm Muscle Training To Smashing Ability In Badminton At Negeri 17 Bengkulu Utara Junior High School”. Multidisciplinary Journals, vol. 3, no. 1, Mar. 2026, pp. 1-4, doi:10.37676/mj.v3i1.1072.