Ahmed Al-Hayali, omar, and Ayad Mohammed Abdul-Allah. 2023. “The Effect of Simultaneous and Sequential Exercises of the Phosphagen and Lactate Energy Systems on a Number of Physical and Functional Variables and Achievement in the 200-Meter Sprint for Juniors”. Al-Rafidain Journal For Sport Sciences 26 (81):341-82. https://doi.org/10.33899/rjss.2023.140177.1185.