VALATKIENĖ, Stasė. The Problems of Moral Education in Theory and Practice of “Active School”. Acta Paedagogica Vilnensia, [S. l.], v. 7, p. 127–133, 2000. DOI: 10.15388/ActPaed.2000.07.9490. Disponível em: https://test.zurnalai.vu.lt/acta-paedagogica-vilnensia/article/view/9490. Acesso em: 25 oct. 2025.