2025. Optimised extraction conditions for maximising saponin yield and antioxidant properties of Hedera helix L. Indian Journal of Natural Products and Resources (IJNPR) [Formerly Natural Product Radiance (NPR)]. 16, 4 (Dec. 2025), 629–643. DOI:https://doi.org/10.56042/ijnpr.v16i4.17153.