Campbell, Timothy, et al. “Analysis of the Modern Distribution of South African Gerbilliscus (Rodentia: Gerbillinae) With Implications for Plio-Pleistocene Palaeoenvironmental Reconstruction”. South African Journal of Science, vol. 107, no. 1/2, Jan. 2011, p. 8 pages, https://sajs.co.za/article/view/10077.