%0 Journal Article %A Ranjbar, محسن %T Management of natural resources and environmental hazardoues of rivers to reinforce tourism and ecotourism potential Case study: Abbass Abad river- Hamedan %J Territory %V 3 %N 10 %P 80-91 %D 2006 %R %U https://sanad.iau.ir/fa/Article/823900