WIJATA, Agata M., Anita POLLAK, Marcin D. BUGDOL, Maria J. BIEŃKOWSKA, and Andrzej W. MITAS. “Support for Learning Programming in Early Education Using EduMATRIX”. Journal of Education, Technology and Computer Science 18, no. 4 (December 15, 2016): 319–324. Accessed December 5, 2025. https://journals.ur.edu.pl/jetacomps/article/view/6232.