00649naa#a2200193#i#450# EN\\bibl\26707 20241211154443.3 2308-4936 20190129b2019####ek#y0engy0150####ca RU QUALITY AND EFFICIENCY OF ACTIVITY SUBJECTS OF ECONOMY Journal article Tula LLC Information and publishing center Innovations and investments 2019 6 с. Journal article local Экономика. Экономические науки. 33 Arsen'ev Yuriy Nikolaevich Davydova T. Yu. Shelobaev Sergey Ivanovich naukaru.ru