Nguyen Thi Thuy, and Nguyen Van Son. “FABRICATION OF NANO EUFEO3 BY GEL-CITRATE METHOD”. UED Journal of Social Sciences, Humanities and Education 2, no. 2 (June 21, 2012): 50-56. Accessed May 17, 2021. https://jshe.ued.udn.vn/index.php/jshe/article/view/389.