Não informado. (1990). The British journal of phytotherapy. School of Phytotherapy.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. The British Journal of Phytotherapy. East Sussex, Inglaterra: School of Phytotherapy, 1990.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. The British Journal of Phytotherapy. School of Phytotherapy, 1990.
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