Kleynhans, C. J., and A. Hoffman. “New distribution records for Clarias theodorae (Weber 1897), Barbus eutaenia (Boulenger 1904), Barbus polylepis (Boulenger 1907), and Opsardium zambezense (Peters 1852) from the Waterberg, Transvaal, South Africa. Southern African Journal of Aquatic Science 18.1-2 (1992): 107-111.

Kleynhans, C. J., and A. Hoffman. “New distribution records for Clarias theodorae (Weber 1897), Barbus eutaenia (Boulenger 1904), Barbus polylepis (Boulenger 1907), and Opsardium zambezense (Peters 1852) from the Waterberg, Transvaal, South Africa. Southern African Journal of Aquatic Science 18.1-2 (1992): 107-111.