LAZAUSKAS, Justinas. Social Activity of A Personality. Problemos, [S. l.], v. 4, p. 29–37, 1969. DOI: 10.15388/Problemos.1969.4.5758. Disponível em: https://test.zurnalai.vu.lt/problemos/article/view/5758. Acesso em: 27 oct. 2025.