Analisis pengaruh perubahan peringkat obligasi terhadap cash holdings perusahaan non-keuangan yang terdaftar di bursa efek indonesia periode 2005 – 2012 = Analysis of the effect of bond rating changes on non financial firms cash holdings listed in indonesia stock exchange for the period of 2005 – 2012 ([, Fakultas Ilmu Administrasi Universitas Indonesia], 2014)