00528naa#a2200169#i#450# EN\\bibl\85012 20240919050342.4 2221-3260 20240531b2024####ek#y0engy0150####ca RU On the social efficiency of service activities Journal article Yaroslavl Yaroslavl State Technical University 2024 12 с. Journal article local Skorobogatova Tatyana Nikolaevna Margarita Yurievna Vakhovskaya theoreticaleconomy.ru