Likhitrakarn, N., Golovatch, S.I. , Srisonchai, R. and Sutcharit, C. 2021. Two New Species of the Giant Pill-Millipede Genus Zephronia Gray, 1832 from Thailand (Diplopoda: Sphaerotheriida: Zephroniidae). Tropical Natural History. 21, 1 (Mar. 2021), 12–26.