Cipta, Indra, Nur A. Limatahu, St. Hayatun Nur Abu, Indriana Kartini, and Yateman Arryanto. 2017. “Characterization of Allophane from Gamalama Volcanic Soil, North Maluku, Indonesia”. Asian Journal of Chemistry 29 (8):1702-4. https://doi.org/10.14233/ajchem.2017.20620.