D. I. Husori, P. Patilaya, D. A. Panjaitan, and I. A. Shulha, “Antisecretory Effect of the Combination of Pegagan (Centella Asiatica) and Sambiloto (Andrographis paniculata) Leaves Ethanol Extracts on Pyloric Ligation-Induced Gastric Ulcer in Rats: doi.org/10.26538/tjnpr/v5i10.8”, TJNPR, vol. 5, no. 10, pp. 1743–1746, Oct. 2021.