RÓŻAŃSKI, ANDRZEJ, and GRZEGORZ LECH. “Individual Value System As a Factor in Creation of Leadership Styles of School Principals”. Journal of Education, Technology and Computer Science 20, no. 2 (March 30, 2017): 180–186. Accessed July 22, 2024. https://journals.ur.edu.pl/jetacomps/article/view/6115.