Synthesis of Graphene Oxide/Polypyrrole (GO/PPy) from Used Batteries as Electrodes in Supercapacitor Cells. Jurnal Kimia Valensi, [S. l.], v. 5, n. 2, p. 194–201, 2019. DOI: 10.15408/jkv.v5i2.11714. Disponível em: https://journal.uinjkt.ac.id/valensi/article/view/11714. Acesso em: 30 nov. 2025.