Egilea
The Southern African Institute of Mining and Metallurgy
3
Frankel P.
2
Hermanus M.
2
Naude A.
2
Stacey J.
2
Ackermann Marietjie
1
African Online Scientific Information Systems (AOSIS)
1
Annegarn Harold J.
1
Botha D.
1
Botha Doret
1
Cronj ̌J.F.
1
Hipatia Press
1
Institute for Security Studies
1
Kigodi Henry Michel
1
Mkhize Mbekezeli Comfort
1
National Association for Clean Air (NACA)
1
Oguntoke Olusegun
1
Poncian Japhace
1
Tolonen Anja K.
1
University of Gothenburg
1
van der Waldt Gerrit
1