Binh, T.T. and Nhung, T.H. 2012. Composition and distribution of earthworms in Luc Ngan district, Bac Giang province and potential using in anti erosion and in soil amelioration. Academia Journal of Biology. 32, 1 (May 2012), 6–12. DOI:https://doi.org/10.15625/0866-7160/v32n1.645.