Communications in the Social Security Administrations as Part of the Measures of Corporate Social Responsibility in their Activity Optimization. Научни трудове на УНСС, [S. l.], v. 3, p. 121–133, 2020. Disponível em: https://ojs.e-dnrs.org/rpunwe/article/view/432. Acesso em: 6 dec. 2025.