CALLINS CHRISTIYANA, C., and V. P. RAJAMANI. “Second Order Statistical Texture Features from a New CSLBPGLCM for Ultrasound Kidney Images Retrieval”. Applied Medical Informatics, vol. 33, no. 4, Dec. 2013, pp. 32-39, https://ami.info.umfcluj.ro/index.php/AMI/article/view/440.