(3GdLgGR GdgVei(B: (3GeQGVI hGdhbGjI efgG (B/ s - (3GHhTGOi GdQhHis ([S.N] : (3eQcR GdGgQGe ddJQLeI hGdfTQ , s, 1991)
Keywords: (3aSjhdhLjGs; (3GeQGVs; (3GdLgGR GdgVeis; (3GdgVes