M. Targan, D. . Świetlik, A. . Kicińska, Karolina, and Tomasz, “Knowledge of university students from the metropolitan area of Gdansk on physiology of procreative health and Fertility Awareness-Based Methods)”, FeR, vol. 35, no. 3, pp. 55–69, Sep. 2018, Accessed: Aug. 17, 2025. [Online]. Available: https://fidesetratio.com.pl/ojs/index.php/FetR/article/view/516