(3CeQGV GdbdH aj (B268 (3SDGdkG h LhGHkG (B/ s - (3TGQg, YeGOs ((3OeTb (B:s (3OGQ GdeYQaI fTQ , JhRjY , WHGYI , JQLeI,s, 1988)
Keywords: (3CeQGV GdbdHs; (3GdChYjI GdOehjIs