Template:Tosh et al., 2008
- Tosh, J., De Block, P., Davis, A.P., Dessein, S., Robbrecht, E. & Smets, E.F. 2008. The tribal placement of the monospecific tropical African genus Petitiocodon (Rubiaceae) based on molecular data and morphology. Blumea-Biodiversity, Evolution and Biogeography of Plants 53(3): 549-565. DOI: 10.3767/000651908X607503
