Harahap N, Silaban DK, Situmorang HN. The Influence of the Number of Tourist Visits on Regional Original Income (PAD) in the Tourism Sector in Deli Serdang District, 2020–2024. IJSCOT [Internet]. 2026 Apr. 28 [cited 2026 May 7];5(01):65-77. Available from: https://journal.poltekpar-nhi.ac.id/index.php/ijscot/article/view/2507