(3MhGQ eY GdTjGWjf (B: s (3hJLQHJj GdYedjI aj ENQGL GdLGf hCHWGd GdSMQ (B/ s - (3GdUGje, eMeOs ((3YeGf (B:s (3OGQ GdaVjdI,s, 1995)
Keywords: (3GdbQBf GdcQje(B.s; (3GdTjWGf(B.s