Ayandibu, A. O., S. Ngobese, I. O. Ganiyu, and I. Kaseeeram. “Constraints That Hinder the Sustainability of Small Businesses in Durban, South Africa”. Journal of Reviews on Global Economics, vol. 8, Dec. 2019, pp. 1402-8, https://mail.lifescienceglobal.com/pms/index.php/jrge/article/view/6282.