Akinniyi, Jane N. 2025. “Synthesis and Characterization of Copper Nanoparticles Using Allium Cepa (L.) Outer Peel at Ambient Temperature”. Tropical Journal of Natural Product Research (TJNPR) 9 (3): 1144 – 1149. https://doi.org/10.26538/tjnpr/v9i3.32.