(3GdGJLGg GdQheGfSi ai TYQ GHi GdbGSe GdTGHi (B/ s - (3GdYQHi MSf OQhjTs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1991)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3GdQeRjI ai GdGOH GdYQHis; (3GdQheGfJjcjI ai GdGOH GdYQHis; (3JGQjN hfbOs