سالم محمد على موسى. 2020. “The Effect of the Employ of Polomer Trainings on Some Physical Capabilities, and The Performance Level of Some Basic Skills of Teen – Agers of Football, Who Are Aged Between 13 Years Up To 15 Years”. Journal of Human Sciences 18 (1). https://doi.org/10.51984/johs.v18i1.660.