C.  Semper, Reisen im Archipel der Philippinen. II. Thl. Wissenschaftlche Resultate. 3. Bd., Landmollusken. 1870.

H. H.  Godwin-Austen, ?On a Collection of Land-Shells made in Borneo by Mr. A. Everett, with Descriptions of supposed new Species. Part II. Zonitidae and Helicidae.?, Proceedings of the Zoological Society of London, pp. 22-47, 1891.

T. H.  Aldrich, ?Notes upon a collection of shells from Borneo with descriptions of new species?, Journal of the Cincinnati Society of Natural History, pp. 23-25, 1889.

O.  von Moellendorff, ?Von den Philippinen V.?, Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft, vol. 20, pp. 65-108, 1888.

O.  von Moellendorff, ?Neue landschnecken von Java?, Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft, vol. 29, pp. 57-72, 89-97, 1897.

E. A.  Smith, ?Descriptions of new species of land-shells from Borneo?, Journal of the Proceedings of the Linnean Society. Zoology, vol. 24, pp. 341-352, 1894.

A.  Solem, ?A collection of Non-marine mollusks from Sabah, Malaysia?, Sabah Society Journal, vol. 2, pp. 1-40, 1964.

W. S. Svan Benthe Jutting, ?Catalogue of the non-marine Mollusca of Sumatra and of its satelite Islands?, Beaufortia, vol. 7, pp. 41-191, 1959.

A.  Solem, ?Endodontide landschnecken von Indonesien und neu guinea?, Archiv für Molluskenkunde, vol. 87, pp. 19-26, 1958.

A.  Solem, ?Philippine Snails of the Family Endodontidae?, Fieldiana: Zoology, vol. 41, pp. 1-12, 1957.

B.  Rensch, ?Die molluskenfauna der Kleinen Sunda-Inseln Bali, Lombok, Sumbawa, Flores und Sumba. II?, Zoologische Jahrbücher. Abteilung für Systematik, Ökologie und Geographie der Tiere, vol. 63, pp. 1-130, 1932.

G. K.  Gude, ?Diagnoses of four undescribed Helicoids from Borneo and Guam (Ladrones)?, Proceedings of the Malacological Society of London, vol. 12-13, 1917.

R. A. M.  Brandt, ?The non-marine aquatic Mollusca of Thailand?, Archiv für Molluskenkunde, vol. 105, pp. 1-423, 1974.

J. J.  Vermeulen, ?Bukit Sarang (Sarawak, Malaysia), an isolated limestone hill with an extraordinary snail fauna?, Basteria, vol. 71, pp. 209-220, 2007.

J. J.  Vermeulen and Whitten, A. J., Guide to the land snails of Bali. Leiden: Backhuys, 1998, p. 164.