Analisis pengaruh kualitas informasi akuntansi dan spesialisasi auditor terhadap efisiensi investasi: studi empiris perusahaan manufaktur yang terdaftar di BEI 2012-2017 = Analysis the effect of accounting information quality and auditor specialization on investment efficiency: empirical study manufacturing company listed in BEI 2012-2017 / Fauzia Diah Rembulan