(3EfgjGQ fXQjI GdCef GdESQGFjdjI (B/s - (3NGdO, YefhFjds; (3GdYLQej, CMeO HQcGJs ((3YeGf, GdCQOf (B:s (3OGQ GdLdjd ddfTQ hGdOQGSGJ hGdCHMGK,s, 1992)
Keywords: (3GdCef Gdbhejs -- (3ESQGFjds; (3ESQGFjds -- (3SjGSI YScQjIs