Cipta, I., Limatahu, N. A., Nur Abu, S. H., Kartini, I., & Arryanto, Y. (2017). Characterization of Allophane from Gamalama Volcanic Soil, North Maluku, Indonesia. Asian Journal of Chemistry, 29(8), 1702–1704. https://doi.org/10.14233/ajchem.2017.20620