Mafi Gholami, Davood, Yarali, Nabiollah, Nouri Kamari, Akram (2014). Economic Valuation of Promenades Using Zonal Travel Costs Method (Z.T.C.M) (Case study: Koohrang Waterfall of Chaharmahal and Bakhtiari Province). *Journal of Environmental Science and Technology*, 16(3), 93-106.