Adeyemo, O., et al. “The Impacts of Biodiesel Feedstock Production Systems in South Africa: An Application of a Partial Equilibrium Model to the Eastern Cape Social Accounting Matrix”. Journal of Energy in Southern Africa, vol. 22, no. 1, Feb. 2011, pp. 2-11, doi:10.17159/2413-3051/2011/v22i1a3191.