2023. Effect of different extraction solvents on the content of Thymoquinone content of Nigella sativa L. seeds using UV-Visible spectroscopy and evaluation of the free radical scavenging activity. Indian Journal of Natural Products and Resources (IJNPR) [Formerly Natural Product Radiance (NPR)]. 14, 1 (May 2023), 22–27. DOI:https://doi.org/10.56042/ijnpr.v14i1.1135.