(3QMdI WGFQ aj OfjG GdTYQ (B: (3CHh GdbGSe GdTGHj (B/ s - (3GdfYeGfj, YHO GdYRjRs ((3GdbGgQI (B:s (3GdOGQ GdeUQjI GddHfGfjI,s, 1997)
Keywords: (3GdTYQGA GdYQHs; (3GdJQGLes; (3JhfSs; (3fGTGhf UZGQ (B(10-14) (3Sfgs