Tung, Nguyen Thanh. “Descriptions of Two New Species of Earthworm of the Genus Pheretima Kinberg, 1867 (Oligochaeta: Megascolecidae) from Mekong Delta - Vietnam”. Academia Journal of Biology 33, no. 1 (May 9, 2012): 24–29. Accessed September 30, 2025. https://ajb.vast.vn/vjbio/article/view/730.