Erkaev Ergashali and Ashurov Olimjon 2023. DIPLOMATIC RELATIONS DURING THE KOKAND KHAN UMAR KHAN PERIOD (1810-1822). American Journal Of Social Sciences And Humanity Research. 3, 03 (Mar. 2023), 62–65. DOI:https://doi.org/10.37547/ajsshr/Volume03Issue03-14.