Abror MD, Fachruddin I. Inter-Regional Cooperation Model for Managing the Tumpak Sewu Waterfall Tourist Attraction in Sidomulyo Village, Lumajang Regency. Society (Bangka. Online) [Internet]. 2025 Apr. 28 [cited 2025 Jul. 1];13(2):600-15. Available from: https://societyfisipubb.id/index.php/society/article/view/829