“BPBD Preparedness Analysis for Flood Disaster in Rokan Hulu in 2023”. International Journal of Sustainable Applied Sciences (IJSAS) 2, no. 9 (October 1, 2024): 887–900. Accessed March 4, 2026. https://www.penerbitjurnalinternasional.com/index.php/ijsas/article/view/642.