T. Atsue and O. E. Oyewande, “Theoretical Study of the Transport Properties of 〖Cs〗_2 NaBiX_6 [X=Br,I] Double Perovskite and its Stability for Thermoelectric Applications”, USci, vol. 4, no. 1, pp. 168–178, Mar. 2025, doi: 10.56919/usci.2541.017.