کتاب های G.l. Buys
Creating a Sustainability Scorecard as a predictive tool for measuring the complex social, economic and environmental impacts of industries, a case study: Assessing the viability and sustainability of the dairy industry
L. Buys,K. Mengersen, S. Johnson,N. van Buuren,A. Chauvin, 2014
History of the church in Namibia, 1805-1990 : an introduction
G.L. Buys, 2003.
