Thiruchelvam, Loshini, Sarat C. Dass, Rafdzah Zaki, Abqariyah Yahya, and Vijanth S. Asirvadam. “Correlation Analysis of Air Pollutant Index Levels and Dengue Cases across Five Different Zones in Selangor, Malaysia”. Geospatial Health 13, no. 1 (May 7, 2018). Accessed January 27, 2021. https://geospatialhealth.net/index.php/gh/article/view/613.