Guder, Aytac, and Halil Korkmaz. “Investigation of Antioxidant Activity and Total Anthocyanins from Blackberry (Rubus Hirtus Waldst. And Kit) and Cherry Laurel (Laurocerasus Officinalis Roem)”. Asian Journal of Chemistry, vol. 24, no. 10, May 2012, pp. 4525-31, https://asianpubs.org/index.php/ajchem/article/view/9695.