Pengaruh pengungkapan corporate social responsibility dan mekanisme good corporate governance terhadap kinerja keuangan dan dampaknya terhadap nilai perusahaan. (studi empiris pada perusahaan pertambangan yang terdaftar di bursa efek Indonesia periode 2006, 2007, dan 2008) = The relation between corporate social responsibility disclosure and good corporate governance mechanism with financial performance and the impact to corporate market value (emphirical study of mining sector company which listed at bursa efek Indonesia in period of 2006, 2007, 2008)