Dinh-Chien Nguyen, Mui Thi Hue, Nguyen Hai Duong, Nguyen Dinh Cong, Vu Van Hiep, Mai Viet Anh, and Nguyen Tuan Kiet. “A STUDY ON BLOCKCHAIN FOR EDUCATIONAL CERTIFICATE MANAGEMENT”. UTEHY Journal of Science and Technology, Vol. 40, Dec. 2023, pp. 38-43, http://jst.utehy.edu.vn/index.php/jst/article/view/652.