I. M. A. A. Permana, D. K. Prasada, A. A. A. N. Sri Rahayu Gorda, and D. A. P. Sukadana, “Legal Construction and Obligations of Tourism Business Operators Towards the Principles of Sustainable Tourism in the Perspective of Tourism Law”, JKIH, vol. 5, no. 3, pp. 255–266, Dec. 2025.