ZWIERZYŃSKA, Anna, GRUSZKA, Jakub, URBAŃCZYK, Karol, DETKA, Karolina and ADAMCZYK-GRUSZKA, Olga. Assessment of the level of knowledge about health behaviors and puerperium of various social groups in the Świętokrzyskie Voivodeship during the Covid-19 pandemic. Journal of Education, Health and Sport. Online. 3 February 2022. Vol. 12, no. 2, pp. 56-68. [Accessed 8 February 2025]. DOI 10.12775/JEHS.2022.12.02.006.