BioStor
 | The Acanthaceae of California and the peninsula of Baja California Thomas F Daniel (1997) Proceedings of the California Academy of Sciences 49(10): 309-403 |
 | The Mammals of Mt. Kitanglad Nature Park, Mindanao, Philippines L R Heaney, Tabaranza Jr et al. (2006) Fieldiana: Zoology 112: 1-63 |