Sagisi, J.L.B., Emperado, R.B. and Garcia, W.O. 2016. Measurement of speed of sound in air using Lissajous curves. Proceedings of the Samahang Pisika ng Pilipinas, 34(1), SPP-2016-PA-12. URL: https://proceedings.spp-online.org/article/view/SPP-2016-PA-12.