Skrzeczkowska, Agnieszka, Jerzy Heimrath, Justyna Surdyka, and Jerzy Zalewski. “Knowledge of Contraceptive Methods Among Adolescents Young Adults”. Polish Journal of Public Health 125, no. 3 (December 14, 2015): 144–148. Accessed July 6, 2025. https://czasopisma.umlub.pl/pjph/article/view/1340.