(3GdTYQjI GdYQHjI GdMOjKI(B: (3JMdjd fUi (B/ s - (3TQHd OGZQs ([S.N] : (3OGQ JhHbGd ddfTQ , s, 1988)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3JGQjN hfbOs