1. P. Ray and H. N. Gupta, “Caraka Samhita (A Scientific Synopsis)”, Indian National Science Academy, New Delhi, 1965.
2. P. Ray, H. N. Gupta and Mira Ray, Susruta Samhita (A Scientific Synopsis)”, Indian National Science Academy, New Delhi, 1980.
3. Sukh Dev, Prime Ayurvevdic Plant Drugs – A Modern Scientific Appraisal, Ane Books Pvt. Ltd., New Delhi, 2012, 2nd Edition.
4. Koji Nakanishi, An Historical Perspective of Natural Products Chemistry in Comprehensive Natural Products Chemistry, Eds. Sir Derck Barton and Koji Nakanishi, Vol 2, 1999, pp XXI–XXXVIII.
5. Paluther (Artemether) Product Monograph, Rhöne-Paulene (India) Limited. This monograph with cited references was dedicated to the memory of Sir Ronald Ross when the world celebrated in 1997 the Centenary of the discovery (in 1897) of malaria parasite by him.