(3GdRQGYI GdLGaI , CSSgG hYfGUQ GSJKeGQgGs - (3GdaNQj, YHO Gddg bGSes ((3GdehUds (3OGQ GdcJH ddWHGYI hGdfTQs, 1981)
Keywords: (3GdRQGYIs -- (3Ydhes; (3GdYQGbs -- (3RQGYIs -- (3GdbQf GdYTQhfs