00515naa#a2200181#i#450# EN\INFRA-M\bibl\13814 20240811120134.7 2306-1731 20161119b2016####ek#y0engy0150####ca RUS RU Can Be Improved Education in Biology and Chemistry in Dagestan? Journal article Moscow INFRA-M Academic Publishing LLC. 2016 4 с. Journal article local Borzova Z. Abdulaeva R. naukaru.ru