(3GdGOH hGdMjGI GdeUQjI(B: (3OQGSGJ ai TYQ GdHGQhOi hThbi hMGaX (B/ s - (3eMeO MSjf gjcds ([S.N] : (3OGQ GdgdGd ddWHGYI hGdfTQ , s, 1992)
Keywords: (3GdGOH GdYQHis; (3GdTYQGA GdYQHs; (3GdGOHGA GdeUQjhfs