NuryatiS., Rahman.., and Taukhid.., “Study on antifungal potency of Terminalia cattapa, Piper betle, Psidium guajava, and Andrographis peniculata on the growth of Aphanomyces in vitro”, Jurnal Akuakultur Indonesia, vol. 4, no. 2, pp. 115-123, Jul. 2007.