00669naa#a2200181#i#450# EN\INFRA-M\bibl\22828 20240912194849.4 1998-0744 20180926b2018####ek#y0engy0150####ca RUS RU Classification of Skills of Students of Senior High School at the Study of Algebra and the Beginning of the Analysis Journal article Moscow INFRA-M Academic Publishing LLC. 2018 7 с. Journal article local Образование. Воспитание. Обучение. Организация досуга. 37 RUS Visitaeva Maret B. naukaru.ru