Rachniyom, W., Srisittipokakun, N., & Kaewkhao, J. (2019). Comparative study of SiO2 in biomass ashes at dierent temperatures. Interdisciplinary Research Review, 14(3), 12–15. Retrieved from https://ph02.tci-thaijo.org/index.php/jtir/article/view/205127