RT - Journal Article T1 - 9 JF - jsci YR - 1994 JO - jsci VO - 1373 IS - 7 UR - http://jsci.khu.ac.ir/article-1-1296-fa.html SP - 0 EP - 0 K1 - 9 AB - 9 LA eng UL http://jsci.khu.ac.ir/article-1-1296-fa.html M3 ER -