Ghous, Muhammad, and Saima Siddiqui. “47 C Assessment of Willingness to Pay for Sustainable Ecotourism Development in the Salt Range Wetlands, Punjab Pakistan”. International Journal of Economic and Environmental Geology 13, no. 2 (June 8, 2022): 47–51. Accessed April 2, 2025. http://econ-environ-geol.org/index.php/ojs/article/view/30.