ZYRIANOVA, Nadezda. Is there happiness? (Are children happy during crisis?). Psychological Studies, [S. l.], v. 3, n. 13, 2010. DOI: 10.54359/ps.v3i13.902. Disponível em: https://psystudy.ru/num/article/view/902. Acesso em: 13 nov. 2026.