Deng1, C., Hu2, H., Han1, C., Yang1, B., & Shao1, G. (2011). Shape-Controlled Synthesis of Zinc Oxide Spherical Structures by Microwave-Assisted Chemical Aqueous Refluxing Process. Asian Journal of Chemistry, 23(5), 2309–2313. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/10345