1. The Natural History of the British Entomostraca;Baird,1850
2. Pennsylvanian Ostracoda of Ardmore Basin, Oklahoma;Bradfield;Bulletin of American Paleontology,1935
3. Paleogeographic History of Western Thailand and Adjacent Parts of Southeast Asia – A Plate Tectonics Interpretation;Bunopas,1981
4. Conodonts, radiolarians and ostracods in the Permian E-Lert Formation, Loei Fold Belt, Indochina Terrane, Thailand;Burrett;Geological Magazine,2015
5. Geologic map of Changwat Loei (Sheet ND47-12, scale 1:250,000);Charoenpravat,1984