Rahman, M. A., A. M. I. Mazumder, M. M. Hossain, and T. S. Islam. “Preparation, Characterization and Catalytic Activity of Copper(II) Oxide Nanoparticles”. Dhaka University Journal of Science, vol. 66, no. 1, Jan. 2018, pp. 9-13, doi:10.3329/dujs.v66i1.54538.