Sari M A, Yunita, and Maria Danesti Situngkir. 2017. “Thermal Stability of Polyoxometalate Compound of Keggin K8[2-SiW11O39]∙nH2O Supported With SiO2”. Science and Technology Indonesia 1 (1):8-15. https://doi.org/10.26554/sti.2016.1.1.8-15.