(3GeQGI ef GbUi GdQjM Gdi GbUi Gddjd JHci GdbUjOI (B/ s - (3GOQjS YjSis; (3YHOGdfHi GdJdGhis ([S.N] : (3QjGV GdQjS ddcJH hGdfTQ , s, 1989)
Keywords: (3GdTYQ GdYQHis; (3GdYUQ GdMOjKs; (3JGQjN hfbOs