Campos, F., Simões, V. and Franco, S. (2016) “Characterization and Comparison of the Participant’s Perception about the Quality of the Fitness Group Exercise Instructor, Considering the Practiced Activity: 10.62591/ajpa.2015/4/08”, Arena-Journal of Physical Activities, 1(4), pp. 85–104. Available at: https://www.uav.ro/jour/index.php/ajpa/article/view/620 (Accessed: 15November2026).