1. Yadav NP, Dixit VK Recent approaches in herbal drug standardization. Int J Integr Biol 2008;2:195-203.
2. Waldesch FG, Konigswinter BS, Remagen HB Herbal Medicinal Products—Scientific and Regulatory Basis for Development Quality Assurance and Marketing Authorization. Washington, DC: Medpharm Stuttagart and CRC Press; 2003. p. 37-52.
3. Anonymous. The Ayurvedic Formulary of India. 2nd ed. Part II. New Delhi: Government of India, Ministry of Health and Family Welfare; 2003. p. 185-6.
4. Anonymous. The Ayurvedic Pharmacopoeia of India. 1st ed. Part II, Vol. III. New Delhi: Government of India, Ministry of Health and Family Welfare; 2010. p. 128.
5. Yadavji T, editor. Commentary Ayurveda Dipika of Chakrapanidutta on Charaka Samhita of Agnivesha, Chikitsasthana; Rasayanadhyaya: Chapter 1(2), Verse13. Varanasi: Chaukhamba Surbharati Prakashan; 2016. p. 382.