Do Van Tai, Tran Hai Ninh, Nguyen Dang Khoa, and Le Ngoc Ly, Cao Cong Anh, Nguyen Thi Bich Thuy*. 2015. “Mot so ket Qua Nghien cuu Che tao son vach duong Polyurea”. Version B of Vietnam Journal of Science and Technology 57 (7). https://b.vjst.vn/index.php/ban_b/article/view/731.