by Almorza Gomar, D, Longhurst, J. W. S, Brebbia, C. A, Barners, J
Year of Publication 2017

by WILLIAM H. HEATH, MICHAEL J. BARNERS, AMARNATH SINGH, HARPREET SINGH
Year of Publication 18.10.2016

by Lange, Glenn-Marie, Barnes, Jonathan I, Motinga, Daniel J
Published in Development southern Africa (Sandton, South Africa) (01.11.1998)