Remedio, A.R.C. and Estoque, M.A. 2004. A model simulation of NO2 observations at the Manila Observatory, Quezon City, Metro Manila. Proceedings of the Samahang Pisika ng Pilipinas, 22(1), SPP-2004-PB-01. URL: https://proceedings.spp-online.org/article/view/SPP-2004-PB-01.