Gnanasekar, P. , Nagappan, A. , Sharavanan, S. , Saravanan, O. , Vinodkumar, D. , Elayabharathi, T. , Karthik, G. (2011). 'Investigation on Feature Extraction and Classification of Medical Images'. World Academy of Science, Engineering and Technology, Open Science Index 60, International Journal of Computer and Information Engineering, 5(12), 1506 - 1511.