Czerepaniak - Walczak, Maria. “Action Research in Teacher Education and Professional Development”. Przegląd Badań Edukacyjnych (Educational Studies Review) 2, no. 19 (February 10, 2015): 181–194. Accessed July 4, 2025. https://apcz.umk.pl/PBE/article/view/PBE.2014.028.