DENEK, Kazimierz. Country-studying as a way of educational activity. Professional Pedagogics, Kyiv, n. 3, p. 34–41, 2012. DOI: 10.32835/2223-5752.2012.3.34-41. Disponível em: https://jrnls.ivet.edu.ua/1/article/view/443. Acesso em: 9 jul. 2026.