Kantong, P., M. Kome-ngam, and P. Rungrojchaipon. “Catalytic Study of Calcium Silicate from Duck Eggshell for the Synthesis of Glycerol Carbonate from Glycerol and Urea”. Journal of Science Ladkrabang, vol. 31, no. 1, May 2022, pp. 1-16, https://li01.tci-thaijo.org/index.php/science_kmitl/article/view/245502.