1.
KOZŁOWSKI, Piotr, KOZŁOWSKA, Magdalena, KOZŁOWSKA, Karolina and CISŁO, Magdalena. The prevalence of premenstrual syndrome in young woman. Journal of Education, Health and Sport. Online. 31 July 2017. Vol. 7, no. 7, pp. 866-872. [Accessed 29 June 2025].