Johnson, U. U., C. C. Edum, and I. K. Nwala. “Idealized Influence and Employees’ Engagement in the Oil Companies in Nigeria”. Journal of Advanced Research in HR and Organizational Management, vol. 6, no. 3&4, Jan. 2020, pp. 15-25, https://adrjournalshouse.com/index.php/Journal-HumanResourcesOrg/article/view/563.