Bushati, Sead, and Marsida Bushati. “Development of Speed in the Upper and Lower Extremities through Games in Children of 6-10 Years Old”. Journal of Human Sport and Exercise 16, no. 3proc (September 1, 2021): S905-S912. Accessed April 20, 2024. https://www.jhse.ua.es/article/view/2021-v16-n3-proc-development-speed-upper-lower-extremities-games.