Green Synthesis Silver Nanoparticles using Quercus infectoria GallOka Shinta Sekar Kirana, Fatimah Nurus Shobah, Zulfa Syaifana Muslih, Ade Irma Rozafia, Wahyu Prasetyo Utomo and Djoko HartantoE3S Web Conf., 555 (2024) 03007DOI: https://doi.org/10.1051/e3sconf/202455503007