A. Fitriah, A. Azhar, A. B. Cahaya, E. Suprayoga, and M. A. Majidi, “THE DENSITY FUNCTIONAL THEORY STUDY OF Li-ION DIFFUSION IN Na-DOPED Li4Ti5O12 AS LITHIUM-ION BATTERY ANODE”, SPEKTRA, vol. 7, no. 3, pp. 151–158, Dec. 2022.