Islamic Work Ethics as a Mediator of the Influence of Compensation, Career Development, Work Environment and Leadership on the Performance of Islamic Bank Employees in Riau Province Reviewed from Islamic Persfectives Author’s Details: (1) Nanda Suryadi (2) Yuswar Z Basri (3) Tatik Maryanti (4) Zulhelmi Abstract This study aims to analyze the Islamic work ethic …