Ibrahim Purawiardi, and Etty Marti Wigayati. 2018. “FORMATION OF SPINEL STRUCTURE IN SYNTHESIS PROCESS OF Li1.37Mn2O4 USING HYDROTHERMAL METHOD”. Jurnal Sains Materi Indonesia 20 (1):15-20. https://doi.org/10.17146/jsmi.2018.20.1.5405.