Thanh, Pham, Pham Thi Tuyet Nhung, Luong Thi Minh Thuy, & Nguyen Hoa Nhai. " Effect of Temperature on Ultrasonic Velocities, Attenuations, Reflection and Transmission Coefficients between Motor Oil and Carbon Steel Estimated by Pulse-echo Technique of Ultrasonic Testing Method." VNU Journal of Science: Mathematics - Physics [Online], 31.4 (2015): n. pag. Web. 19 May. 2024