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MIZYUK B, MELNYK I. PARADIGMATIC APPROACH TO SYSTEM MANAGEMENT IN THE HOSPITALITY INDUSTRY. Herald of Khmelnytskyi National University. Economic sciences [Internet]. 2021 Mar. 6 [cited 2026 Jan. 28];294(3):148-53. Available from: https://heraldes.khmnu.edu.ua/index.php/heraldes/article/view/1809