“INHIBITION OF INFLUENZA A VIRUS INFECTIVITY AND RNA-DEPENDENT RNA POLYMERASE ACTIVITY BY ANDROGRAPHIS PANICULATA ETHANOL EXTRACT: Hang Ding, Xiaokai Chen, Weilie Ma and Zhizhen Zhang” (2021) The Southeast Asian Journal of Tropical Medicine and Public Health, 51(5), pp. 686–695. Available at: https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/256 (Accessed: 16 April 2026).