Kowalska, Jolanta Elżbieta, and Michał Kowalewski. “Opinions of Physical Education Teachers about the Preparation of Teachers of Early School Education to Carry Out Physical Activities in Classes I-III”. Journal of Education, Health and Sport 10, no. 5 (May 14, 2020): 111–117. Accessed March 28, 2024. https://apcz.umk.pl/JEHS/article/view/JEHS.2020.10.05.010.