Palaneswamy Savetha, et al. “A Study on Phenotypic Characterization and Genotypic Determination of Drug Resistance of Helicobacter Pylori from Cases of Acid Peptic Disease in a Tertiary Care Center”. Asian Journal of Medical Sciences, vol. 15, no. 1, Jan. 2024, pp. 135-41, https://nepjol.info/index.php/AJMS/article/view/57358.