Al-Zahrani, D. A., and Z. A. R. El-Karemy. “A NEW SUCCULENT EUPHORBIA (EUPHORBIACEAE) SPECIES FROM THE RED SEA COAST AND ISLANDS”. Edinburgh Journal of Botany, vol. 64, no. 2, July 2007, pp. 131-6, https://doi.org/10.1017/S0960428607000856.