W. Nur, P. Kusnanto, T. Y. Pramana, M. T. Harnomo, O. Oyong, and A. Mudigdo, “Histopathology of Helicobacter pylori in Chronic Dyspepsia Patients”, InaJGHE, vol. 13, no. 3, pp. 161–165, Dec. 2012.