Carambas, B.M., Catedral, M.D. and Tapia, A.K.G. 2005. Physics teachers’ diaries. Proceedings of the Samahang Pisika ng Pilipinas, 23(1), SPP-2005-2G-02. URL: https://proceedings.spp-online.org/article/view/SPP-2005-2G-02.