M.KH. NAZIROV. SOCIO-ECONOMIC, CULTURAL AND POLITICAL DEVELOPMENT OF THE SECOND BULGARIAN KINGDOM IN THE XI-XIV CENTURIES. Oriental Journal of Social Sciences, [S. l.], v. 2, n. 06, p. 89–97, 2022. DOI: 10.37547/supsci-ojss-02-06-13. Disponível em: https://supportscience.uz/index.php/ojss/article/view/430. Acesso em: 29 apr. 2025.