TY JOUR TI CATEGORICAL APPARATUS OF THE STUDY OF ENSURING EFFICIENCY OF ACTIVITY OF THE PUBLIC CATERING ENTERPRISE KW efficiency KW category apparatus KW catering enterprises KW business processes KW quality KW team KW satisfaction KW impressions JO Russian Journal of Management AU Merkulova, E.G. AU Valeeva, Y.S. PY 2025 IS 12 PB Publishing Center RIOR