Susanto, Alfonsus Budi. “The Effect Of Government Policy And Environmental Sustainability On The Performance Of Tourism Business Competitiveness: Empirical Assessment On The Reports Of International Tourism Agencies”. International Journal of Energy Economics and Policy 9, no. 6 (October 4, 2019): 439–446. Accessed March 28, 2024. https://www.econjournals.com/index.php/ijeep/article/view/8297.