Dendeng, R. F. M. ., K. Santa, and S. C. . Kumajas. “A WebGIS-Based Location Analysis System for Disaster Mitigation in Bitung City Using Ray Casting and Haversine Formula”. Sinkron : Jurnal Dan Penelitian Teknik Informatika, vol. 10, no. 3, July 2026, pp. 1630-7, doi:10.33395/sinkron.v10i3.16164.