Al-Abbasi, T. M., A. Al-Farhan, A. W. Al-Khulaidi, M. Hall, O. A. Llewellyn, A. G. Miller, and A. Patzelt. 2010. “IMPORTANT PLANT AREAS IN THE ARABIAN PENINSULA”. Edinburgh Journal of Botany 67 (1): 25-35. https://doi.org/10.1017/S0960428609990217.