Golhar, A. R., Sawadh, P., & Choudhari, N. K. (2013). Formulation of Mathematical Modeling to Characterize The Aluminium Metals Using Ultrasonic Non-Destructive Techniques. JOURNAL OF ADVANCES IN PHYSICS, 2(1), 104–109. https://doi.org/10.24297/jap.v2i1.2105