Likhitrakarn, N., Golovatch, S.I. & Panha, S. (2010)

The millipede genus Orthomorpha Bollman, 1893 in Thailand. 1. Revision of the sericata-group, with descriptions of four new species (Diplopoda, Polydesmida, Paradoxosomatidae)

. Zootaxa, 2361 (1), 23–45.