1. Natural products as sources of new drugs over the nearly four decades from 01/1981 to 09/2019;Newman;J. Nat. Prod.,2020
2. Natural product isolation;Sarker,2005
3. V. Seidel, Initial and bulk extraction, 2nd ed., Methods in Molecular Biology, in: Nat. Prod. Isol., Humana Press Inc., Totowa, pp. 27–46.
4. A review on the extraction methods use in medicinal plants, principle, strength and limitation;Nn;Med. Aromat. Plants,2015
5. Methods of extraction – Phytochemical Techniques;Raaman,2006