Al Farhan, A.H., Aldjain, I.M., Thomas, J., Miller, A.G., Knees, S.G., Llewellyn, O. and Akram, A. (2008) “Botanic Gardens in the Arabian Peninsula”, Sibbaldia: the International Journal of Botanic Garden Horticulture, (6), pp. 189–203. doi:10.24823/Sibbaldia.2008.43.