RT - Journal Article T1 - z JF - jsci YR - 2008 JO - jsci VO - 18 IS - 46 UR - http://jsci.khu.ac.ir/article-1-1199-en.html SP - 785 EP - 802 K1 - h AB - z LA eng UL http://jsci.khu.ac.ir/article-1-1199-en.html M3 ER -