1.
Michael Udoidiong O, Julius Oribhabor B, Effiong Munam E, James Bernard J. Assessment of the impact of human settlement on the heavy metal concentrations of lower cross river, Nigeria. Sci. J. Pure Appl. Sci. [Internet]. 2013Jul.31 [cited 2024Jul.22];2(7):270-8. Available from: http://sjournals.com/index.php/sjpas/article/view/970