M. K. Sabullah, S. A. Ahmad, H. Jirangon, A. J. Gansau, and M. R. Sulaiman, “Acute Effect of Copper on Puntius javanicus Survival and a Current Opinion for Future Biomarker Development”, J Environ Bioremed Toxicol, vol. 2, no. 1, pp. 28–32, Jul. 2014.