Vergara, C.J.T., Ballesteros, L.I.M., Calaque, P.M. and Somintac, A.S. 2015. SnO2: F film on ZnO nanorods as ammonia and humidity sensor. Proceedings of the Samahang Pisika ng Pilipinas, 33(1), SPP-2015-PB-25. URL: https://proceedings.spp-online.org/article/view/1231.