عباس, ابراهيم, فاروق فرج جمعة, & صباح عبد فليح.
" Effect of adding Salicylic acid and Fertilizer on some Anthraqunion Glycosides content in the leaves of  Aloe vera L. Cactis." <em>Journal of Kerbala for Agricultural Sciences</em> [Online], 2.3 (2015): 136-147. Web. 24 Nov. 2019