Ramirez, F., Narandan, R. and Salumbides, E.J. 2013. Doppler-free Rb spectroscopy in student labs. Proceedings of the Samahang Pisika ng Pilipinas, 31(1), SPP2013-6C-3. URL: https://proceedings.spp-online.org/article/view/SPP2013-6C-3.