KUMAR, B. N. G., and S. B. NANDAN. “Effect of Copper on the Humoral and Biochemical Indices of the Teleost Fish, Anabas Testudineus (Bloch, 1792)”. Walailak Journal of Science and Technology (WJST), vol. 11, no. 10, Dec. 2013, pp. 871-82, https://wjst.wu.ac.th/index.php/wjst/article/view/678.