Zeina Abdulkareem Abbas, and Fatima Abid Malih. “An Analytical Study of (Smart Tennis Sensor) Technical Data and Its Relationship to the Serving Accuracy of Wheelchair Tennis Players”. Modern Sport, vol. 20, no. 2, June 2021, pp. 0137-45, https://doi.org/10.54702/msj.2021.20.2.0137.