KOWALSKA, Jolanta Elżbieta and KOWALEWSKI, Michał. Self-assessment of the competences of early childhood education teachers to conduct lessons of physical activities. Journal of Education, Health and Sport. Online. 30 July 2020. Vol. 10, no. 8, pp. 62-71. [Accessed 26 November 2024]. DOI 10.12775/JEHS.2020.10.08.007.