RT - Journal Article T1 - JF - Andishe-_ye-Amari YR - 1997 JO - Andishe-_ye-Amari VO - 2 IS - 1 UR - http://andisheyeamari.irstat.ir/article-1-557-fa.html SP - 19 EP - 20 AB - LA eng UL http://andisheyeamari.irstat.ir/article-1-557-fa.html M3 ER -