Kardi, Ipa Sari, et al. “Effects of Slalom Switch, Okubuuka, and Kykkaa Training on kids’ Athletics Level 2 Skills Among Children Aged 8-11 Years”. Journal Sport Area, vol. 11, no. 2, May 2026, pp. 170-8, doi:10.25299/sportarea.2026.vol11(2).25295.