Pataleta, F.P., Ibarreta, R.S., Cadatal, M.M. and Garcia, W.O. 2003. Raman shifting of a 532 nm Nd:YAG laser in methane gas. Proceedings of the Samahang Pisika ng Pilipinas, 21(1), SPP-2003-3F-02. URL: https://proceedings.spp-online.org/article/view/SPP-2003-3F-02.