1. “A history of Hindu chemistry from the earliest times to the middle of the 16th century, A.D.,” by Acharya P. C. Roy;
2. “Rasa Ratnakararam,” by Siddha Nitya Nath, with volumes “Rasa,” “Rasayana,” and “Ridhi”; “Rasaratna Samuccaya of 13th, 14th, or 16th century A.D.,” by Baghbhatta;
3. “Ayurveda Prakasa,” by Sri Madhava Upadhyaya;
4. “Rasa Hridaya tantra of 6th or 7th century A.D.,” by Govindapada Deva; “Rasasaram,” by Govindacharya;
5. Rasapadhadi,” by Bindu
6. A BRIEF HISTORY OF INDIAN ALCHEMY COVERING TRANSITIONAL AND TANTRIC PERIODS (Circa 800 A.D. - 1300A. D) MOMIN AL
7. "Rasayana Chikitsa - Part 1". http://ayurveda-foryou.com. External link in |journal= (help)
8. p. 188, Alberuni's India, translate. Edward C. Sachau, vol. 1, London: Trübner & Co., Ludgate Hill, 1888
9. Inducting Rasayana Therapy in our Daily Routine by Dr. Krishna R.S
10. Rege, Nirmala N.; Thatte, Urmila M.; Dahanukar, Sharadini A. (1999). "Adaptogenic properties of six rasayana herbs used in Ayurvedic medicine". Phytotherapy Research