KUK, Tomasz. Polish and Ukrainian universities cooperation for pursuing professional learning level. Professional Pedagogics, Kyiv, n. 13, p. 123–129, 2017. DOI: 10.32835/2223-5752.2017.13.123-129. Disponível em: https://jrnls.ivet.edu.ua/1/article/view/128. Acesso em: 11 aug. 2026.