Ullah, Sami, Hanita Daud, Sarat C. Dass, Habib Nawaz Khan, and Alamgir Khalil. “Detecting Space-Time Disease Clusters With Arbitrary Shapes and Sizes Using a Co-Clustering Approach”. Geospatial Health 12, no. 2 (November 6, 2017). Accessed July 6, 2020. https://geospatialhealth.net/index.php/gh/article/view/567.