Nasurdin, A. M., M. Jantan, W. W. Peng, and T. Ramayah. “Influence of Employee Involvement in Total Productive Maintenance Practices on Job Characteristics: The Malaysian Scenario”. Gadjah Mada International Journal of Business, Vol. 7, no. 3, Sept. 2005, pp. 287-00, https://dev.journal.ugm.ac.id/v3/gamaijb/article/view/14845.