Chanabun, R.; Sutcharit, C.; Tongkerd, P.; Tan, S.-H. A.; Panha, S. Three New Species of Semi-Aquatic Freshwater Earthworms of the Genus Glyphidrilus Horst, 1889 from Malaysia (Clitellata: Oligochaeta: Almidae). Zootaxa 2012, 3458, 120–132.