[1]D. Le, T. A. Nguyen, K. O. Nguyen Thi, B. Le, and L. Bui, “Investigation of the formation of Cu4SnS4 using mechanical alloying and heat-treatment for thermoelectric conversion”, Vietnam J. Sci. Technol., vol. 63, no. 6, pp. 1137–1146, Dec. 2025.