Retrieved 19 October 2008.^ "A Preliminary assessment of the present ecological state of the major rivers and streams within the Northern Service Delivery Region of the Ekurhuleni Metropolitan Municipality" (PDF).. 
Àpéjọ Àgbáyé Lórí Ìfọwọ́sowọ́pọ̀ yẹ kó wáyé ní Johannesburg, ní South Africa... 