Bruggen, A. C. van. (1976).
Asperitas trochus (Müll.), a land snail of Palue Island, Flores, Indonesia (Mollusca, Gastropoda, Pulmonata, Ariophantidae).
Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen Series C Biological and Medical Sciences. 79(3): 212-217, pl. 1.