Analisis pengaruh struktur kepemilikan terhadap kinerja perusahaan berdasarkan siklus hidup (studi pada perusahaan manufaktur, IT dan multimedia yang terdaftar di Bursa Efek Indonesia periode 2005-2010) = Analysis of the effect of ownership structure on firm performance based on life cycle (a study of manufacturing, IT, and multimedia firms listed in Indonesia Stock Exchange for the period of 2005-2010)