Pham, K., N. Tran, and T. Nguyen. “Effect of Hydrothermal Treatment Temperature on Morphology of Obtained Calcium Silicate from Rice Husk Ash”. VNUHCM Journal of Science and Technology Development, Vol. 19, no. 3, Sept. 2016, pp. 69-75, doi:https://doi.org/10.32508/stdj.v19i3.575.