Bangsal, E.B., Macalalad, E.P., Uy, J.C.Q., Roman, T.A., Vallar, E.A. and Galvez, M.C.D. 2004. Characterization of airborne fine particulate matter by air sampling and electron microscopy during the 2004 New Year fireworks celebration in Manila. Proceedings of the Samahang Pisika ng Pilipinas, 22(1), SPP-2004-PB-02. URL: https://proceedings.spp-online.org/article/view/SPP-2004-PB-02.