Atama, Chinedu Ifeanyi, Chioma Julieth Onovo, Chioma Janefrances Okeke, Ossai Nelson, and Christopher Didigwu Nwani. 2020. “Heavy Metal Analysis of Three Urban Rivers in Enugu, Nigeria”. Annual Research & Review in Biology 35 (10), 14-19. https://doi.org/10.9734/arrb/2020/v35i1030285.