Goharipour, Hanieh, and Masoud Mahdavi Hajiluie. “A Study on River Ecotourism Development: Case Study: Karaj River”. International Journal of Geography and Geology 5, no. 4 (March 14, 2016): 73–85. Accessed July 22, 2024. https://archive.conscientiabeam.com/index.php/10/article/view/1954.