Wróblewski, Hubert, Dariusz Chojęta, Aleksandra Zimna, Ewelina Zygmunt, and Barbara Maziarz. “Hygiene Behaviour Among Youths before and During the COVID-19 Pandemic”. Journal of Education, Health and Sport 10, no. 8 (August 15, 2020): 199–203. Accessed March 29, 2024. https://apcz.umk.pl/JEHS/article/view/JEHS.2020.10.08.023.