Listyarini, A. E., Alim, A., Oktaviani, A. D., Putro, K. H., Kristiyanto, A., Margono, A., & Pratama, K. W. (2021). The Relations of Using Digital Media and Physical Activity with the Physical Fitness of 4th and 5th Grade Primary School Students. Physical Education Theory and Methodology, 21(3), 281–287. https://doi.org/10.17309/tmfv.2021.3.12