Adha, Seby Anjelica, et al. “The Effect of Burpee Training on Improving 50-Meter Breaststroke Speed in Youth Club Athletes at Noren Tirta Buana”. EDUJAVARE: International Journal of Educational Research, vol. 4, no. 02, July 2026, pp. 139-45, doi:10.70610/edujavare.1599.