بوتمزين ابراهيم, بن يوسف حفصاوي, and جلطي الطيب. 2022. “Mental Perception and Its Relationship to the Level of Psychological Tension of Football Players ( u19 ) in Algeria”. Journal of Sport Science Technology and Physical Activities 19 (1):188-203. https://doi.org/10.5281/zenodo.15291279.