SIEMIĄTKOWSKI, Robert, HABER, Mateusz, CZACHOR, Adrianna, KULA, Paula, JUŚKIEWICZ, Adam, GRELEWICZ, Olga, KUCY, Natalia, SERVAAS, Elwira and KOTULA, Alicja. Comparative Analysis of Collagen Supplementation Forms and Their Effects on Multiple Health Parameters. Journal of Education, Health and Sport. Online. 9 October 2024. Vol. 65, p. 55474. [Accessed 27 December 2025]. DOI 10.12775/JEHS.2024.65.55474.