NOTES ON THE HALLMARKING OF TWENTIETH CENTURY SOUTH AFRICAN PRECIOUS METAL ARTEFACTS.Published in:South African Journal of Cultural History / Suid-Afrikaanse Vereniging vir Kultuurgeskiedenis, 2017, v. 31, n. 1, p. 82By:van Staden, FredPublication type:Article
Withdrawal of SANS 1200 and SANS 10120 as a South African National Standard.Published in:Journal of the South African Institution of Civil Engineering, 2016, v. 24, n. 2, p. 31By:Watermeyer, RonPublication type:Article