Kayal, N., and N. Singh. “Synthesis, Characterization of Silica Obtained from Rice Husk and Determination Its Silica Content by Modified Volumetric Method”. Eurasian Chemico-Technological Journal 11, no. 2 (April 20, 2009): 93–96. Accessed July 30, 2024. https://ect-journal.kz/index.php/ectj/article/view/516.