Mutashar, A. G., Esiwed, R. A., Abbas, J. Q., & Aziz, A. A. (2021). The effect of economic training on some physiological variables and physical abilities for 1500 m run of advanced class. Journal of Human Sport and Exercise, 16(4proc), S1882-S1888. https://doi.org/10.14198/jhse.2021.16.Proc4.34