Ubalua*, A., Chijioke, U., & Ezeronye, O. (2018). Determination and Assessment of Heavy Metal Content in Fish and Shellfish Aba River, Abia State, Nigeria. CURRENT APPLIED SCIENCE AND TECHNOLOGY, 7(1), 16–23. retrieved from https://li01.tci-thaijo.org/index.php/cast/article/view/164790