Maiyena, Sri, Anis Nazihah Mat Daud, and Shahrul Kadri Ayop. 2025. “Elastic Properties Measurement of the Multi-Layered Materials Using the Pulse-Echo Immersion Technique”. Journal of Science and Mathematics Letters 13 (1):23-29. https://doi.org/10.37134/jsml.vol13.1.3.2025.