Ahmed, H.M.M.; Yeh, J.Y.; Lin, W.J.; Forsberg, N.E.; Cheng, W.T.K.; Ou, B.R (2014). "Validation of a luciferase bioassay to detect the progestative activity in gilts whose estrus was induced by an uterotonic herb (Ligusticum chuanxiong)". Livestock Science. 163: 159–164. doi:10.1016/j.livsci.2014.02.012. ISSN1871-1413.
Ahmed, H.M.M.; Yeh, J.Y.; Lin, W.J.; Forsberg, N.E.; Cheng, W.T.K.; Ou, B.R (2014). "Validation of a luciferase bioassay to detect the progestative activity in gilts whose estrus was induced by an uterotonic herb (Ligusticum chuanxiong)". Livestock Science. 163: 159–164. doi:10.1016/j.livsci.2014.02.012. ISSN1871-1413.