Alaalddin AL-Naqeeb, O., and A. Abdul Ghani Al-Dabbagh. “Response of Pulmonary Ventilation and Its Variables When Performing Physical Exertion of Gradient Intensity in Different Temperature Conditions in Children Aged (10-12) Years”. College of Basic Education Research Journal, vol. 16, no. 4, Nov. 2020, pp. 857-84, doi:10.33899/berj.2020.167241.