by Zietsman, L., Van Der Merwe, A.J., Geldenhuys, J.J., Van Rensburg, N.F.J.
Published in Mathematical and computer modelling (01.08.2003)

by Barnard, R.O. (University of Pretoria, Pretoria, South Africa.), Buys, A.J, Geldenhuys, J.J
Published in Communications in soil science and plant analysis (01.01.1996)

by Janson, P.M.C., Kuhn, S.H. & Geldenhuys, J.J.
Published in South African medical journal (21.06.1975)

by Geldenhuys, J.J, Groenewald, J.H, Zyl, J.J.W. van, Brede, H.D, Weber, H.W, Stephan, S.A.R, Zuurmond, T
Published in S Afr Vet Med Ass J (1971)