A. Bhujel, B. Sapkota, R. L. Aryal, B. R. Poudel, S. Bhattarai, and S. K. Gautam, “Insight of precursor concentration, particle size and band gap of zirconia nanoparticles synthesized by co-precipitation method”, BIBECHANA, vol. 18, no. 1, pp. 1–9, Jan. 2021.