00481naa#a2200169#i#450# EN\INFRA-M\bibl\9848 20240813122630.2 2500-3291 20150925b2015####ek#y0engy0150####ca RUS RU The internal control system efficiency of the organization Journal article Moscow INFRA-M Academic Publishing LLC. 2015 0 с. Journal article local Polkovskiy L. naukaru.ru