GUČIENĖ, G. Practice of riddles in development of children’s cognitive skills. Psichologija, [S. l.], v. 9, n. 1, p. 47–58, 1968. DOI: 10.15388/Psichol.1968.9.8918. Disponível em: https://www.journals.vu.lt/psichologija/article/view/8918.. Acesso em: 29 apr. 2024.