(3bQGAI ai GdQhGjI GdYQHjI (B/ s - (3GHhGdeYGWi GHhGdfLGs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1988)
Keywords: (3GdGOH GdYQHis; (3GdYUQ GdMOjKs; (3GdbUU GdYQHjIs; (3GdhWf GdYQHis; (3JGQjN hfbOs