Omar, Muhamad Khalil, Norashikin Hussein, and Norazamimah Azli. 2016. “Role Overload, Self- Efficacy, Locus of Control and Job Performance Among Employees of a Printing Company in Malaysia”. Information Management and Business Review 8 (5), 61-69. https://doi.org/10.22610/imbr.v8i5.1460.