Cruz, F.T. and Villarin, J.T. 2001. An analysis on the precipitable water vapor observed over the PIMO GPS Station. Proceedings of the Samahang Pisika ng Pilipinas, 19(1), SPP-2001-H2B-2. URL: https://proceedings.spp-online.org/article/view/SPP-2001-H2B-2.