(3GdhLjR aj JCOjH GdYGedjf HGdMcheI h GdbWGY GdYGe (B: s (3OQGSI fXQjI h JWHjbjI (B/ s - (3GdfLGQ, Rcj eMeOs ((3GdbGgQI (B:s (3GdgjFI GdeUQjI GdYGeI ddcJGH,s, 1986)
Keywords: (3GdEOGQI GdYGeIs; (3GdehXahfs