Ref1

https://www.researchgate.net/profile/Habib_Ahmad/publication/325198910_Iron_Weed_Vernonia_anthelmintica_as_a_Renewable_Oilseed_Crop_in_Pakistan/links/5b086e32aca2725783e5dd3c/Iron-Weed-Vernonia-anthelmintica-as-a-Renewable-Oilseed-Crop-in-Pakistan.pdf#page=176