00684naa#a2200193#i#450# EN\INFRA-M\bibl\19386 20250127112528.1 2306-1731 20171218b2017####ek#y0engy0150####ca RUS RU Differentiated Approach As One of the Ways to Optimize the Process of Training Foreign Languages at Non-Linguistic University Journal article Moscow INFRA-M Academic Publishing LLC. 2017 4 с. Journal article local Статистика. Демография. Социология. 31 RUS Kolmakova Ol'ga Anatol'evna Lazickaya E. D. zh-szf.ru