A Stitch in Time Saves Nine: A Case Study of the Importance of Quality Water Models and Surface Rehabilitation to Optimize Closure Options

von Botha, R.
Veröffentlicht in Mine Closure (12. : 2018 : Leipzig) Mine closure 2018 (2018)

White union membership in the eighties

von Botha, R. H.
Veröffentlicht in Industrial relations journal of South Africa (1989)

A study among newly appointed principals in South African schools

von Botha, R. J.
Veröffentlicht in International journal of education economics and development (2019)

South West Africa and the United Nations

von Botha, R. F.
Veröffentlicht 1976

The future of South West Africa/Namibia : a symposium

Veröffentlicht 1977