Ritdet, N., P. Rojpibulstit, and S. Kangsadalampai. “Expression of Helicobacter pylori Virulence Genes under Atmospheric Condition”. Science & Technology Asia, vol. 26, no. 2, June 2021, pp. 210-9, https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/240162.