(3GeHQGWhQ GdfZe (B/ s - (3YHOGddg efGYs ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1993)
Keywords: (3eMeO YHOGdhgGHs; (3GdehSjbi GdYQHjIs