GARBAČIAUSKIENĖ, M. About stages of distinguishing as a thought operation. Psichologija, [S. l.], v. 8, p. 27–31, 1966. DOI: 10.15388/Psichol.1966.8.9294. Disponível em: https://www.journals.vu.lt/psichologija/article/view/9294.. Acesso em: 5 may. 2024.