N. Venkatesh, Dara Jayanth, K. Sudheera, N.M. Nandhitha,. “Weld Flaw Characterization in Ultrasonic Testing from Discrete Walsh Hadamard Transform Co-Efficient”. International Journal of Advanced Science and Technology 28, no. 13 (November 6, 2019): 440 - 450. Accessed November 4, 2026. http://sersc.org/journals/index.php/IJAST/article/view/1339.