ROMANOVSKY, A.; MIKHAILICHENKO, V. The role of self-improvement in a person’s spiritual development and its mechanisms. Problems of Engineer-Pedagogical Education, [S. l.], n. 52-53, p. 387–403, 2018. Disponível em: https://jped.uipa.edu.ua/index.php/JPED/article/view/142. Acesso em: 3 may. 2024.