W. A. Olaniyi, F. A. Akinsemolu, D. J. Ogunyemi, and O. G. Omitogun, “Comparative genetic and morphometric characterization of sympatric populations of Heterobranchus bidorsalis and Heterobranchus longifilis”, NJAP, vol. 44, no. 5, pp. 24–28, Dec. 2020.