Annamdas Radhika, Madhav, Venu Gopal Madhav Annamdas, and Yaowen Yang. 2012. “Application of Piezoceramic Transducers for 3D Impedance Modelling in Damage Assessment of Plate”. Scientific Journal of Pure and Applied Sciences 1 (3):144-61. http://sjournals.com/index.php/sjpas/article/view/1016.