M. E. Kowalska, P. Kalinowski, and U. Bojakowska, “The global and national perspective of women’s education on breastfeeding”, Piel21w, vol. 12, no. 1(42), pp. 49–52, Jan. 2013, Accessed: Oct. 20, 2025. [Online]. Available: https://czasopisma.umlub.pl/piel21w/article/view/2619