Karki, I. B., S. Chatterjee, J. J. Nakarmi, D. Sinha, D. Goswami, and P. K. Mandal. “Photovoltaic Characterization of Dye-Sensitized Solar Cells With Natural Dyes Using Synthesized ZnO Nanostructures”. Journal of Nepal Chemical Society, vol. 30, Dec. 2013, pp. 56-61, doi:10.3126/jncs.v30i0.9336.