Brey, J. R., A. Cardozo Machado Suga, A. A. De Paula Da Silva, and C. R. Rodriguez-Añez. “Class Context, Teacher Behavior, and Physical Activity Levels During Physical Education Classes ”. Journal of Physical Education , Vol. 32, no. 1, Apr. 2021, p. e-3243, doi:10.4025/jphyseduc.v32i1.3243.