Al-Hubaishi, M.A., et al. “Enhanced Antimicrobial Activity of Zinc Oxide Nanoparticles With Controled Particle Size by Current Density”. International Journal of Scientific Research in Chemical Sciences, vol. 6, no. 1, Feb. 2019, pp. 1-9, https://ijsrcs.isroset.org/index.php/j/article/view/43.