M. Geetha, R C Pooja, J. Swetha, N. Nivedha, T. Daniya. “Implementation of Text Recognition and Text Extraction on Formatted Bills Using Deep Learning”. International Journal of Control and Automation, Vol. 13, no. 02, Apr. 2020, pp. 646 -51, https://sersc.org/journals/index.php/IJCA/article/view/11207.