Tuan, T. 2003. INVESTIGATING THE TRANSMITTANCE SPECTRAL OF MULTILAYER TiO2 - Cu - TiO2 THIN FILMS. Science and Technology Development Journal. 6, 1&2 (Feb. 2003), 39-44. DOI:https://doi.org/https://doi.org/10.32508/stdj.v6i1&2.3302.