م.م ضياء عادل عباس أ.د مجيد خدا يخش أسد. “Analysis of the Skill of Scoring for the Round Matches the Final Price of the World Cup - Russia Football”. Modern Sport, vol. 17, no. 3, Aug. 2019, https://jcopew.uobaghdad.edu.iq/index.php/sport/article/view/801.