1. Chemistry of the genus Plectranthus;Abdel-Mogib;Molecules,2002
2. Medicinal Plants in South Western Saudi Arabia;Abulfatih,1987
3. Medicinal plants in South Western Saudi Arabia;Abulfatih;Economic Botany,1987
4. Adachi, H., Ehata, S., Hayashi, T., 1996. Antiaging cosmetics containing Coleus forskohlii root extracts and antioxidants. Patent-Japan Kokai Tokkyo Koho-08 176, 005 7.
5. Plectranthone A, B, C und D. Diterpenoide Phenanthren-1,4-dione aus Blattdrüsen einer Plectranthus sp. (Labiatae);Adler;Helvetica Chimica Acta,1984