A. Kassim, T. W. Tee, A. H. Abdullah, S. Nagalingam, and H. S. Min, “Deposition and characterization of Cu₄SnS₄ thin films by chemical bath deposition method”, Maced. J. Chem. Chem. Eng., vol. 29, no. 1, pp. 97–103, Jun. 2010.