Petra Diamonds sells its Kimberley Ekapa Mining stake for R300m
Ekapa Mining Archives
All That Glitters - 'The rock on which the future will be built
Is it possible to start a diamond mine in Africa from nothing? - Quora
Petra Diamonds to acquire De Beers' Kimberley Mines stake
Kaiser Research Online - Education - SDLRC - Region: South Africa
Kaiser Research Online - Education - SDLRC - Region: South Africa
Northern Cape Business 2017-18 edition
Southern Africa diamond resources a summary
Southern Africa diamond resources a summary
Petra sells Kimberley mine for $22M