R. Joia, N. Mukhlis, A. Rashid, M. Atamanov, and A. Yosufi, “A Novel, Cost-Effective Post-Doping Method to Produce Nitrogen-Doped Activated Carbon from Rice Husk for CO2 Adsorption”, JNSR, vol. 4, no. 1, pp. 78–92, Mar. 2026.