Analisis hubungan antara tingkat kompetisi di industri perbankan kepada tingkat profitabilitas perbankan syariah dan perbankan konvensional di Indonesia: periode: 2006-2011 = Analysis of the relationship between degree of competition and profitability level on sharia and conventional banking in Indonesia over period: 2006-2011

Perbandingan tingkat intermediasi aktivitas layanan jasa berbasis upah dan efisiensi bank umum konvensional vs bank umum syariah di Indonesia periode 2011-2013 = A comparison on intermediation fee based service activity and efficiency of conventional banks vs islamic banks in Indonesia for 2011-2013 period

Pengaruh rasio keuangan terhadap profitabilitas bank umum syariah di Indonesia (periode 2011-2013) = Analysis of influencing the financial ratio to profitability of sharia banking in Indonesia (period 2011-2013)

Analisis perbandingan bisnis model, efisiensi, kualitas aset, dan stabilitas bank syariah dengan bank konvensional di Indonesia periode 2008-2012 = The comparative analysis of business model, efficiency, asset quality, and stability of Islamic and coventional banks in Indonesia for the the period 2008-2012

Analisis perbandingan kinerja reksa dana syariah dan reksa dana konvensional di Indonesia periode 2007-2012 = Comparative analysis of performance of Indonesian islamic mutual fund and conventional mutual funds for the period 2007-2012