KULYNIAK I, KOPETS H. THEORETICAL ASPECTS OF DETERMINING THE ESSENCE OF TOURIST ACTIVITY OF THE PARTICIPANTS IN TOURISM. Herald of Khmelnytskyi National University. Economic sciences [Internet]. 2023 Nov. 30 [cited 2026 Jan. 28];324(6):313-9. Available from: https://heraldes.khmnu.edu.ua/index.php/heraldes/article/view/319