Alkhalidi, Dr. Mohammed Jasim Mohammed. “Effect of Cardiac Respiratory Fitness Exercises (CRF) According to Some Biomechanical Laws in P02 and Lung Efficiency of Female Students”. International Journal of Psychosocial Rehabilitation, vol. 24, no. 4, June 2020, pp. 3281-5, https://doi.org/10.61841/w4ndtw37.