Professional psychology and the doctrines of sin and grace : Christian leaders’ perspectives

The use and abuse of power : multiple perspectives on the causes of corruption

Psychology and religion : an introduction

The psychology of religion : an empirical approach

Perbandingan spritual well-being antara anggota dan non-anggota tarekat (Studi kuantitatif pada para anggota Yayasan Islam Paramartha-Paguyuban Thariqah Kadisiyah Wilayah Bandung, Jawa Barat)