Retief, F. P., Universiteit van die Vrystaat
Retief, F. P., University of the Free State
Retief, F. P., University of the Orange Free State
Retief, F.P., Universiteit van die Vrystaat
Retief, F.P., Universiteit van die Vrystaat
Retief, F.P., University of the Free State
Ribeiro, LFC, Stellenbosch University
Riley, F. R., University of Cape Town
Ronca, Italo, University of South Africa
Ruden, Sarah, University of Cape Town
Ryan, A.J., University of KwaZulu-Natal
Ryan, A.J., University of Natal

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