Deepti Mutalik-Desai , Tanuja Khedkar, Bhavana Pansare, Yamini Chaudhari, Pradnya Deshmukh. 2015. “Clustering of E-Mails Using Pattern Matching”. International Journal of Engineering and Computer Science 4 (02). india. http://ijecs.in/index.php/ijecs/article/view/2608.