00587naa#a2200181#i#450# EN\\bibl\24261 20240902180922.1 2312-4431 20181227b2018####ek#y0engy0150####ca RUS RU ORGANIZATION AND CONDUCTION OF BINARY CLASS Journal article Cheboksary Non-state educational private institution of additional professional education "Expert-methodological centre" 2018 4 с. Journal article local Kuznetsova Tatyana V. Ryadovskaya Oksana D. naukaru.ru