Jose, A., and R. Muhammed. “Extraction and Evaluation of Anthocyanin from Dioscorea Alata (L.) for Its Application As a Natural Food Colour”. The International Journal of Science & Technoledge, vol. 3, no. 9, Sept. 2015, http://internationaljournalcorner.com/index.php/theijst/article/view/124649.