Torres, M.L.Y., Cadatal, M.M. and Garcia, W.O. 2004. A low threshold Nd:YAG laser pumped hydrogen Raman shifter with capillary waveguide. Proceedings of the Samahang Pisika ng Pilipinas, 22(1), SPP-2004-PB-16. URL: https://proceedings.spp-online.org/article/view/SPP-2004-PB-16.