Padungthon, S., M. M. El-Moselhy, K. Khuanmar, and P. Weerayutsil. “Cation Modified Silicates for Catalytic Production of Phenol from Benzene”. Engineering and Applied Science Research, vol. 44, no. 2, Apr. 2017, pp. 115-7, https://ph01.tci-thaijo.org/index.php/easr/article/view/84203.