Situmorang Y, Februati Trimurni. The Effectiveness of Flood Pre-Disaster Management Programs at the Medan City Regional Disaster Management Agency (BPBD). SJN-PAR [Internet]. 2026 Jul. 31 [cited 2026 Aug. 21];4(01). Available from: https://staging-talenta.usu.ac.id/sajjana/article/view/24906