(3GdGUhd GdJUejejI hGdJfajPjI aj af hgfOSI GdOjchQ (B: s (3JcfhdhLjG GdfLGQI hGdOjchQ (B/ s - (3jhfS NfaQs ((3HjQhJ (B: s (3OGQ GdQGJH GdLGeYjI , s, 2000)
Keywords: (3GdOjchQs; (3GdOjchQ GdOGNdis; (3GdOjchQ (B- (3JUejes; (3GdOjchQ (B- (3gfOSIs