00644naa#a2200193#i#450# EN\\bibl\5898 /en/manage/index 20250504091555.7 1993-7768 20150615b2015####ek#y0engy0150####ca RUS RU Excursion as one of the methods of interactive learning foreign languages in universities for tourism and service Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 6 с. Journal article local Kostovarova Valentina Chudaykina Galina fht.editorum.ru /en/manage/index