GUSELTSEVA, Mariana. Ratiohumanistic approach of H.O. Ball: psychology of freedom and creative synthesis. Psyhology & society, [S. l.], n. 2, p. 41–55, 2019. DOI: 10.35774/pis2017.02.041. Disponível em: https://pis.wunu.edu.ua/index.php/enpis/article/view/956.. Acesso em: 27 apr. 2024.