Konieczna, Iwona, and Karina Wieczorek. “Open Day of Pedagogical University of Cracow, Kraków, 17th March 2017, Poland”. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae 2, no. 1 (December 31, 2017): 176–180. Accessed April 29, 2024. https://aupcstudianaturae.uken.krakow.pl/article/view/5427.