BRINIA, Vasiliki; NIKITAKI, Angeliki; KIOULANIS, Spyridon. Active Educational Techniques in Lifelong Learning Centers. International Journal of Academic Research in Progressive Education and Development, [S. l.], v. 6, n. 1, 2017. Disponível em: https://ijarped.com/index.php/journal/article/view/316. Acesso em: 13 jul. 2025.