8Paul Eardley -Taylor and Nicholas Green, "Power in South Africa: Striking A Balance?", http: // www. engineefingnews, co. za/article/company - announcement - power - in - south - africa - striking - a - bal- ance -2011 - 11 -22. 被引量:1
9"Business Monitor International South Africa Power Report", Q2, 2012, p. 26. 被引量:1