Jagiełło-Rusiłowski, Adam, and Hanna Solarczyk-Szwec. “Literature Review of Key Research on Social Competency in Polish and Worldwide Higher Education”. Przegląd Badań Edukacyjnych (Educational Studies Review) 2, no. 17 (January 17, 2014): 27–51. Accessed December 6, 2021. https://apcz.umk.pl/PBE/article/view/PBE.2013.011.