KALINICHENKO S, VLASENKO T, VITKOVSKYI Y, GRIBINYK A. FORMATION OF THE RANGE OF SERVICES - A PRIORITY DIRECTION OF MARKETING ACTIVITY OF A TRAVEL FIRM. Herald of Khmelnytskyi National University. Economic sciences [Internet]. 2022 May 26 [cited 2026 Jan. 28];306(3):289-93. Available from: https://heraldes.khmnu.edu.ua/index.php/heraldes/article/view/969