Jaleel K, Radi S, Salman A. The Effect of Using Different Ball Weights and Sizes on Developing Some Fundamental Skills in Soccer. jope [Internet]. 2020 Dec. 28 [cited 2026 Jul. 7];32(4):100-1. Available from: https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/1045