Parzych, K., N. Tatysiuk, and R. Gotowski. “The Role of the Public Organizations As a Manager of School Pupils Tourism. The Example of the Society ,,Nasze Szwederowo””. Journal of Education, Health and Sport, vol. 7, no. 6, June 2017, pp. 778-8, https://apcz.umk.pl/JEHS/article/view/4978.