Optimization of phosphoric acid activation on palm shell activated carbon for bio-battery. ALKIMIA : Jurnal Ilmu Kimia dan Terapan, [S. l.], v. 10, n. 1, p. 31–41, 2026. DOI: 10.19109/vxrt5e83. Disponível em: https://jurnal.radenfatah.ac.id/index.php/alkimia/article/view/31922.. Acesso em: 11 mar. 2026.