Riri Rezeki Hariani, Muhammad Arif Nasution, Muhammad Sutan Agung, Ira Thania Rasjidi, Arifin Saleh, & Muhammad Fathin Abdul Fachri. (2026). Efficiency Analysis of Flood Mitigation Policies in North Sumatra in 2025: An Economic Analysis of Law Perspective . Journal of Creative Power and Ambition (JCPA), 4(2), 112–122. https://doi.org/10.70610/jcpa.1565