(3GdceHjhJQ hGUhd GdJGejf (B/ s - (3YHOGdYRjR agei gjcds ([S.N] : (3OGQ GdQGJH GdLGeYjI , s, 1986)
Keywords: (3GdMGSHGJ GdGdcJQhfjIs; (3GdGOGQIs; (3GdJCejfs