T. T. Nguyen, N. Q. Nguyen, and A. D. Nguyen, “First record of the earthworm genus Pheretima Kinberg, 1867 sensu stricto in Vietnam, with description of a new species (Annelida: Clitellata: Megascolecidae)”, Zootaxa, vol. 4496, no. 1, pp. 251–258, Oct. 2018.