N. T. My Huong, N. D. Chung, and L. H. Ba, “Population density of the peanut worm Siphonosoma australe australe (Keferstein, 1865) (Sipunculus: Phascolosomatidae) in the mangrove forest of Gianh river, Quang Binh province”, AJB, vol. 40, no. 2, pp. 138–144, Nov. 2018.