M. SAHAIDAK, “PARTNERSHIP AND DIVERSIFICATION AS FACTORS IN THE FORMATION OF A SERVICE-ORIENTED BUSINESS MODEL OF HOTEL AND RESTAURANT BUSINESS ENTERPRISES”, Herald of Khmelnytskyi National University. Economic sciences, vol. 320, no. 4, pp. 271–277, Jun. 2023, doi: 10.31891/2307-5740-2023-320-4-40.