Siongco, A.C.Q., Lagrosas, N. and Holben, B.N. 2009. Analysis of optical depth measurements using Moderate Resolution Imaging Spectroradiometer (MODIS) and Aerosol Robotic Network (AERONET) sun photometer. Proceedings of the Samahang Pisika ng Pilipinas, 27(1), SPP-2009-1A-02. URL: https://proceedings.spp-online.org/article/view/SPP-2009-1A-02.