(3GdbOS (B: s (3eGVjgG(B- (3MGVQgG(B- (3eSJbHdgG (B/ s - (3LGHQ, aGjR agOs ((3YeGf (B:s (3OGQ GdLdjd,s, 1985)
Keywords: (3JGQjN adSWjfs; (3GdbOSs