Winter, A. J. de & Bruggen, A.C. van. (1992). Systematic position and distribution of the African land snails
Afropunctum seminium (Morelet) and
'Guppua' rumrutiensis (Preston) (Mollusca, Gastropoda Pulmonata: Euconulidae), with the description of two new taxa.
Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen, Series C. 95(4): 515–533.