Simatupang, M.P. et al. 2025. Enhanced Optical Properties of Ce-Doped ZnO Nanoparticles via A Green Plant-Based Synthesis Approach. Spektra: Jurnal Fisika dan Aplikasinya. 10, 1 (Apr. 2025), 25–34. DOI:https://doi.org/10.21009/SPEKTRA.101.03.