КОГАТЬКО, Ю.; БОЙКО, В. NON-GOVERNMENTAL SAMPLE SURVEYS OF THE POPULATION IN THE SOCIAL SPHERE: INTERNATIONAL EXPERIENCE AND OPPORTUNITIES FOR UKRAINE. Demography and social economy, [S. l.], v. 63, n. 1, p. 80–100, 2026. Disponível em: https://ojs.dse.org.ua/index.php/dse/article/view/271. Acesso em: 24 mar. 2026.