The Study of Soil Permeability Test for Landfill of Slag and FABA in The Area of Location 2 LB3 in The Regency of Central HalmaheraMiftah Muhammad, Hilda Alkatiri, Wawan Ak Conoras and Arbi HayaMATEC Web Conf., 372 (2022) 05001DOI: https://doi.org/10.1051/matecconf/202237205001