Yang, Kun, Le-Ping Sun, Yi-Xin Huang, Guo-Jing Yang, Feng Wu, De-Rong Hang, Wei Li, Jian-Feng Zhang, Yong-Sheng Liang, and Xiao-Nong Zhou. “A Real-Time Platform for Monitoring Schistosomiasis Transmission Supported by Google Earth and a Web-Based Geographical Information System”. Geospatial Health 6, no. 2 (May 1, 2012): 195-203. Accessed October 17, 2021. https://geospatialhealth.net/index.php/gh/article/view/137.