Wahibur Rokhman
* Corresponding Author
Sekolah Tinggi Agama Islam Negeri (STAIN) Kudus
Indonesia

RIVAI, Harif Amali, is senior lecturer and researcher at Management Department, Faculty of Economics, Andalas University, Indonesia. He held his DBA (2006) accomplished Doctor of Business Administration from Graduate College of Management, Southern Cross University, Australia; and Master degree (M.Si.) (2001) from Universitas Gadjah Mada. His research focused on Organizational Behavior and Human Resource Management. He is actively writing papers. Several of his works has been published in local and international journal.  He has also presented few papers on academic conferences.
Author’s contact details: Faculty of Economics, Department of Management, Andalas Universty, Campus UNAND Limau Manih 25163; Phone: +62 751 710 88, Fax.: +62 751 71089; e-mail: harifamali71@yahoo.com.       

Harif Amali Rivai
Andalas University, Padang
Indonesia

RIVAI, Harif Amali, is senior lecturer and researcher at Management Department, Faculty of Economics, Andalas University, Indonesia. He held his DBA (2006) accomplished Doctor of Business Administration from Graduate College of Management, Southern Cross University, Australia; and Master degree (M.Si.) (2001) from Universitas Gadjah Mada. His research focused on Organizational Behavior and Human Resource Management. He is actively writing papers. Several of his works has been published in local and international journal.  He has also presented few papers on academic conferences.
    Author’s contact details: Faculty of Economics, Department of Management, Andalas Universty, Campus UNAND Limau Manih 25163; Phone: +62 751 710 88, Fax.: +62 751 71089; e-mail: harifamali71@yahoo.com.     

Abideen Adewale
International Islamic University
Malaysia

ADEYEMI, Abideen Adewale, is a lecturer at Department of Finance, Kulliyyah of Economics and Management Sciences, International Islamic University Malaysia. He held his Ph.D. in Business Administration from International Islamic University Malaysia; and  His M.Sc. in Finance from University of Lagos, Akoka, Lagos State, Nigeria; and B.Sc. from the same university. He is actively writing papers. Several of his works has been published in local and international journal.  He has also presented few papers on academic conferences.
Author’s contact details: Kulliyah of Economics and MAnagement Sciences, International Islamic University, Malaysia 53100, Jl. Gombak, Selangor, PO Box 10, 50728, Kuala Lumpur, Phone: 603-6916 4675 / 4698, Fax.: 603-61964609; e-mail: abidewale@iium.edu.my.