Hove, George, and Dennis Macuacua. “An Exploration of the Dissatisfaction of Employees on Organizational Performance: A Case of XYZ Security Services (Gauteng)”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 28, no. 2, July 2016, pp. 254-73, https://www.gssrr.org/JournalOfBasicAndApplied/article/view/5635.