%0 Journal Article %T - %J Journal of Environmental Studies %I دانشگاه تهران %Z 1025-8620 %D 1976 %\ 02/20/1976 %V 5 %N 5 %P - %! - %R %X - %U https://jes.ut.ac.ir/article_14893_98a7252788035f96d200ed7d6b97eead.pdf