BOČÁKOVÁ, Oľga; KUBÍČKOVÁ, Darina. Education in the 21st Century. International Journal for Innovation Education and Research, Dhaka, Bangladesh, v. 3, n. 2, p. 160–169, 2015. DOI: 10.31686/ijier.vol3.iss2.322. Disponível em: https://scholarsjournal.net/index.php/ijier/article/view/322.. Acesso em: 30 jun. 2024.