Nguyen, G., U. Hoang, M. Nguyen, D. Nguyen, and M. Nguyen. “Simple Procedure for Determination of the Carbon Content in Silica-Supported Materials”. Science and Technology Development Journal, Vol. 19, no. 4, Dec. 2016, pp. 162-6, doi:https://doi.org/10.32508/stdj.v19i4.632.