Ladines, A.N., Santos, G.N.C. and Quiroga, R.V. 2008. Catalyst-free synthesis of zinc oxide (ZnO) nanostructures through the horizontal vapor phase crystal growth. Proceedings of the Samahang Pisika ng Pilipinas, 26(1), SPP-2008-1A-03. URL: https://proceedings.spp-online.org/article/view/SPP-2008-1A-03.