Shahadat, H. et al. 2026. Green Synthesis of Cobalt Oxide Nanoparticles using Averrhoa carambola and Psidium guajava Plant Extract: Characterisation and Photocatalytic Activity Treatment of Organic Dye. Asian Journal of Chemistry. 38, 5 (May 2026), 1333–1340. DOI:https://doi.org/10.14233/ajchem.2026.35689.