Essential oils of the pakistani species of the family umbelliferae 43. ligusticum elatum seed oil Ashraf, M.; Sandra, P.J.; Saeed, T.; Bhatty, M.K. Pakistan Journal of Scientific and Industrial Research 23(1-2): 61-63 1980 0030-9885 https://eurekamag.com/research/005/384/005384209.php