1. Statement by President Cyril Ramaphosa on Escalation of Measures to Combat Covid-19 Epidemichttps://ewn.co.za/
2. Public Procurement for Sustainable and Inclusive Growth: Enabling Reform through Evidence and Peer Reviewshttps://www.oecd.org/gov/ethics/Public-Procurement-for%20Sustainable-and-Inclusive-Growth_Brochure.pdf
3. Implementing sustainable public procurement in South Africa: Where to start;Turley;Int. Inst. Sustain. Dev.,2014
4. The Public Procurement Bill Needs Muscle to Empower Whistle-Blowershttps://www.dailymaverick.co.za/article/2020-03-05-the-public-procurement-bill-needs-muscle-to-empower-whistle-blowers/
5. Towards the construction of unobtrusive research techniques: Critical considerations when conducting a literature analysis;Auriacombe;Afr. J. Public Aff.,2016