KARVELIS, V. Mentally retarded children’s training to plan their own work during handicrafts lessons. Psichologija, [S. l.], v. 1, p. 95–122, 1962. DOI: 10.15388/Psichol.1962.1.4837. Disponível em: https://test.zurnalai.vu.lt/psichologija/article/view/4837. Acesso em: 26 oct. 2025.