1. Huh, J.:Compendium of Oriental Medicine. (1610).
2. Bae, H.W. (Ed.),Korean Ginseng, 2nd Ed., Korea Ginseng Research Institute, Korea, 115–158 (1978).
3. Brekhman, I.I. and Dardymov, I.V.: New substances of plant origin which increase non specific resistance.Ann. Rev. Pharmacol. 9, 410 (1969).
4. Shibata, S.: Active principles of ginseng roots.Tampakushitsu 12, 32(1967).
5. Tanaka, O.: Chemical constitutents of ginseng.Taisha 10, 548 (1973).