Gupta, Chhavi, and Sanjeev Jain. “Multilevel Thresholding Based on Fuzzy C Partition and Gravitational Search Algorithm”. INFOCOMP Journal of Computer Science 13, no. 1 (September 1, 2014): 1-11. Accessed August 5, 2020. http://infocomp.dcc.ufla.br/index.php/infocomp/article/view/3.