Tanakulrungsank, W., Tienkaew, S., & Praserthdam, P. . (2002). The Effect of Silica Added on Large Surface Area Of Nanocrystalline Titania. Journal of Engineering, RMUTT, 2, 84–89. Retrieved from https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242378