King, R., and B. Akpan. “Population Density Dynamics of <i>Pachymelania byronensis</I> (Wood, 1828) (Gastropoda: Thiaridae) in the Cross River, Nigeria”. Zoologist (The), vol. 18, no. 1, Apr. 2021, pp. 57-61, doi:10.4314/tzool.v18i1.10.