Analisis pengaruh manajemen modal kerja terhadap profitabilitas perusahaan (studi pada perusahaan sektor manufaktur yang terdaftar di Bursa Efek Indonesia periode 2007-2011) = Analysis of the effect of working capital management on firm profitability (a study of manufacturing firms listed in Indonesia Stock Exchange for the period 2007-2011)

Pengaruh diversifikasi terhadap manajemen laba pada perusahaan yang terdaftar di Bursa Efek Indonesia periode 2008-2011 = The effect of diversification on earnings management in public listed company in Indonesian Stock Exchange for period 2008-2011

Pengaruh earnings terhadap stock returns pada perusahaan yang terdaftar di bursa efek indonesia periode 2006-2012 = The effect of earnings on stock returns at the companies listed in indonesia stock exchange 2006-2012 period

Analisis pengaruh tingkat hutang terhadap manajemen laba riil pada perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia periode 2010-2014 = The impact of leverage on real earning management of manufacturing firms listed on Indonesia Stock Exchange in 2010-2014

Analisis pengaruh growth option terhadap leverage: studi empiris pada perusahaan non keuangan yang terdaftar di Bursa Efek Indonesia periode 2006-2015 = The influence analysis of growth option towards leverage empirical: study on non financial companies listed in the Indonesia stock exchange period 2006-2015