Ratiya Komsri. (1997) The development of Andrographis paniculata extract gel. Mahidol University,:ม.ป.ท.Ratiya Komsri. 1997. The development of Andrographis paniculata extract gel. ม.ป.ท.:Mahidol University,;Ratiya Komsri. The development of Andrographis paniculata extract gel. ม.ป.ท.:Mahidol University, 1997. Print.