STEPONAITIENĖ, L. Some ability training and children’s mental development training process issues. Psichologija, [S. l.], v. 9, n. 2, p. 57–65, 1968. DOI: 10.15388/Psichol.1968.9.8931. Disponível em: https://test.zurnalai.vu.lt/psichologija/article/view/8931. Acesso em: 28 oct. 2025.