Wigayati, Etty Marti, and Ibrahim Purawiardi. “Sintesis Li1,37Mn2O4 Dengan Metoda Solid-State Reaction Dan Hidrothermal (Synthesis of Li1,37Mn2O4 by Using Solid State Reaction and Hydrothermal Methods)”. Jurnal Metalurgi, vol. 33, no. 2, Aug. 2018, pp. 79-90, doi:10.14203/metalurgi.v33i2.435.