(3GdLPhQ GdTYHjI ddeSQM GdYQHi (B/ s - (3aGQhb NhQTjOs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1991)
Keywords: (3GdGOH GdYQHis; (3GdeSQM GdYQHis; (3JGQjN hfbOs; (3GdeSQMjGJ GdYQHjIs