Sibanda, M., Z. Gumede, B. Nomlala, M. Mkhize, and H. Ndlela. “Revisiting the Causal Link Between Agriculture, Industrial Output and Financial Sector Development in South Africa”. Journal of Reviews on Global Economics, vol. 8, Dec. 2019, pp. 1258-67, https://lifescienceglobal.com/pms/index.php/jrge/article/view/6316.