Nutthanicha Nairong และ Sasitorn Wongroung. (2013) In vitro propagation of plookao (Houttuynia cordata thunb.). Chiang Mai University:ม.ป.ท.Nutthanicha Nairong และ Sasitorn Wongroung. 2013. In vitro propagation of plookao (Houttuynia cordata thunb.). ม.ป.ท.:Chiang Mai University;Nutthanicha Nairong และ Sasitorn Wongroung. In vitro propagation of plookao (Houttuynia cordata thunb.). ม.ป.ท.:Chiang Mai University, 2013. Print.