Umurzak Alibekov Yuldashevich. ON CHANGES IN THE ECOLOGICAL ENVIRONMENT, POLITICAL, SOCIO-ETHNIC PROCESSES IN THE 18TH-FIRST HALF OF THE 19TH CENTURY. eijmr [Internet]. 2025 Oct. 15 [cited 2026 Mar. 11];12(10):267-71. Available from: https://eijmr.org/index.php/eijmr/article/view/3692