Chan, B.O., Lim, R.B.V. and Gaston, J.B.L. 2002. Understanding and demonstrating plastic deformation processes using Cu wires and springs. Proceedings of the Samahang Pisika ng Pilipinas, 20(1), SPP-2002-PP-41. URL: https://proceedings.spp-online.org/article/view/SPP-2002-PP-41.