Business Day - 16 November 2017 by Michael Nassen Smith, Institute for African Alternatives.
Business Day - 24 November 2017 by André de Ruyter, chairman of the Manufacturing Circle.
Engineering News - 3 July by Terence Creamer.
Engineering News - 21 June by Terence Creamer.
Financial Mail - 13 July by Claire Bisseker.
Read oonline at Financial Mail
Engineering News - 29 May by Terence Creamer.