The challenge of utilizing Regulatory Impact Assessment (RIA) method in the formulation of regional regulations in the disaster sector in DKI Jakarta ProvinceCharles Simabura, Feri Amsari, Khairul Fahmi, Haykal and Nurul IzmiE3S Web Conf., 464 (2023) 10004DOI: https://doi.org/10.1051/e3sconf/202346410004