M. A. Ali, Al-Hemaid, F. M., Lee, J., Hatamleh, A. A., Gyulai, G., and Rahman, M. O.,
“Unraveling systematic inventory of Echinops (Asteraceae) with special reference to nrDNA ITS sequence-based molecular typing of Echinops abuzinadianus”, vol. 14, pp. 11752-11762, 2015.