Abidin, Zaenal, et al. “Synthesis of Cu2O, Cu2O Charcoal, and Cu2O Activated Charcoal Composites As Antibacterial Agents ”. Jurnal Ilmu Pertanian Indonesia, vol. 29, no. 4, July 2024, pp. 564-72, https://doi.org/10.18343/jipi.29.4.564.