TY JOUR TI Service "master class" as an effective method of merchandising in the restaurant industry KW culinary master class KW merchandising KW public catering enterprise KW model of service process KW sales promotion KW criteria for preparation and holding of culinary master class JO Servis Plus AU Shamkova, N.T. AU Novikov, A.A. AU Maksimova, V.I. PY 2024 IS 11 PB Russian State University of Tourism and Service