Nwaogazie, I. L., L. O. Uba, and C. C. Dike. “Flooding Incidence and Drainage Network Analysis in Bonny Island, Nigeria”. Emerging Issues in Science and Technology Vol. 2, Jan. 2020, pp. 117-30, https://stm1.bookpi.org/index.php/eist-v2/article/view/841.