Maskur Hadi, I Ketut Budarma, and I Ketut Sutama. “Visitor Perceptions of Service Quality in Promoting Environmental Sustainability at Umbul Bening Water Park, East Java”. International Journal of Travel, Hospitality and Events 3, no. 3 (September 30, 2024): 255–262. Accessed October 14, 2024. https://journal.polteksahid.ac.id/index.php/ijothe/article/view/426.