Rofiah, A. et al. 2026. Crystal Structure and Lattice Strain Analysis of Pure and Fe3+-Doped TiO2 Nanoparticles with Varied Dopant Concentrations Based on the Sol-Gel Method. SEARCH: Science Education Research Journal. 4, 2 (Apr. 2026), 273–281. DOI:https://doi.org/10.47945/search.v4i2.2968.