Cov kws tshawb fawb tsim thev naus laus zis los hu ua nag los nag
Cov kws tshaj lij los ntawm North Caucasus Federal University (NCFU), nrog rau lwm tus kws tshawb fawb Lavxias thiab cov npoj yaig los ntawm UAE, tab tom txhim kho thev naus laus zis ...