Y. Muhammed Anshad, P, and Dr S.S. Kumar. “Automatic Segmentation of Chondroblastoma from X-Ray Images Using Active Contour and Levelset Method”. International Journal of Engineering & Technology, vol. 7, no. 2.21, Apr. 2018, pp. 140-3, https://doi.org/10.14419/ijet.v7i2.21.11853.