Representasi citra gaya hidup masyarakat kontemporer dalam iklan dalam tinjauan etika komunikasi (analisis semiotik terhadap iklan dengan pencitraan gaya hidup masysrakat kontemporer, dan penilaian etisnya) = The Representation of contemporary society lifestyle image in advertisement, in the view of ethics communication (semiotic analysis of advertisement and lifestyle image in contemporary society, and it's ethical judgement)