SONI, V., P. ., and A. DWIVEDI. “Photoprotection, Phytosynthetic Plasticity and Antioxidant Activity under Drought Stress in Aloe Barbadensis Miller”. Biotechnological Research, Vol. 2, no. 3, Sept. 2016, pp. 120-4, http://br.biomedpress.org/index.php/br/article/view/722.