(3eSQMjGJ(B: (3GdfGQ hGdRjJhf(B, (3SbhW aQYhf (B/ s - (3GdaQjO aQLs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1989)
Keywords: (3GdGOH GdYQHis; (3GdeSQM GdYQHis; (3JGQjN hfbOs; (3GdeSQMjGJ GdYQHjIs