Handoko Putra, F., and R. Kurniawan. “Clustering for Disaster Areas Endemic Dengue Hemorrhagic Fever Based on Factors Had Caused in East Java Using Fuzzy Geographically Weighted Clustering - Particle Swarm Optimization”. Jurnal Aplikasi Statistika & Komputasi Statistik, vol. 8, no. 1, June 2016, p. 27, doi:10.34123/jurnalasks.v8i1.10.