1.Kien DT, Nhung PTT, Thanh PV. Non-destructive Characteristics of Ultrasonic Waves in 1018 Low Carbon Steel. Comm. Phys. [Internet]. 2014 Oct. 10 [cited 2026 Jan. 2];24(3S1):1-6. Available from: https://vjs.ac.vn/cip/article/view/1