Matthew, Alpha, et al. “The Effects of Thermal Annealing on the Electrochemical Performance of Cu -Doped H3PO4 Activated Graphite Anode Material for Applications in Batteries”. Nigerian Journal of Physics, vol. 34, no. 1, June 2025, pp. 159-65, https://doi.org/10.62292/10.62292/njp.v34i1.2025.354.