(3LRjQI GdYQH (B/ s - (3eSYhO, LeGd YHO GdgGOj eMeOs; (3LeYI, haGA eMeO QaYJs ((3GdefUhQI (B:s (3OGQ GdhaGA ddWHGYg h GdfTQ,s, 1990)
Keywords: (3LRjQI GdYQHs; (3GdJGQjNs; (3GdLGgdjgs