Environmental Student Scientific Association Zist Sepehr Student Magazine 11 1 2016 05 21 Interaction of the economy and Environment centered on ecotourism Interaction of the economy and Environment centered on ecotourism 27 35 64558 FA Samira Vahidian University of Tehran Seyed Mahdi Heshmatol Vaezin University of Tehran Journal Article 2016 04 03 https://biosepehrsj.ut.ac.ir/article_64558_53039587bb61a1eb92412ed27f6f98ab.pdf