Idowu, A. B., M. O. Edema, and A. O. Adeyi. “Distribution of Bacteria and Fungi in the Earthworm Libyodrillus violaceous(Annelida: Oligochaeta), a Native Earthworm from Nigeria”. Revista De Biología Tropical, vol. 54, no. 1, Mar. 2006, pp. 49–58, doi:10.15517/rbt.v54i1.13991.