Gautam, S. K., B. Sapkota, A. Bhujel, and S. Bhattarai. “Estimation of Particle Size and Band Gap of Zinc Oxide Nanoparticle Synthesized by Chemical Precipitation Method”. Journal of Nepal Chemical Society, vol. 41, no. 1, Aug. 2020, pp. 46-50, doi:10.3126/jncs.v41i1.30448.