(1988). Technical information on medicinal plants: Lagundi, tsaang-gubat, yerba buena, sambong. Philippine Council for Health Research and Development, Department of Science and Technology.
Chicago-referens (17:e uppl.)Technical Information on Medicinal Plants: Lagundi, Tsaang-gubat, Yerba Buena, Sambong. Taguig, Metro Manila: Philippine Council for Health Research and Development, Department of Science and Technology, 1988.
MLA-referens (9:e uppl.)Technical Information on Medicinal Plants: Lagundi, Tsaang-gubat, Yerba Buena, Sambong. Philippine Council for Health Research and Development, Department of Science and Technology, 1988.
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