Devi Oktaviana Latif, Ahmad Rifa’i, and Kabul Basah Suryolelono. “CHEMICAL CHARACTERISTICS OF VOLCANIC ASH IN INDONESIA FOR SOIL STABILIZATION: MORPHOLOGY AND MINERAL CONTENT”. GEOMATE Journal 11, no. 26 (October 13, 2019): 2606–2610. Accessed August 14, 2022. https://geomatejournal.com/geomate/article/view/2646.