TOPCZEWSKA, Katarzyna, STANGRET, Anna, MULARCZYK, Agata, SZCZĘŚNIAK, Angelika, ROGULSKA, Karolina and KAPCZUK, Patrycja. Aging and old age in the opinion of high school students in Chojnice. Journal of Education, Health and Sport. Online. 2 September 2020. Vol. 10, no. 9, pp. 25-28. [Accessed 24 July 2024]. DOI 10.12775/JEHS.2020.10.09.003.