The Effect of Surfactant Formulation and Salam Leaf Extract (Syzygium Polyanthum) on The Durability of Soybean OilKhadijah Diyah Kustini, Mulyati Tahir and Zainal ZainalBIO Web Conf., 96 (2024) 01003DOI: https://doi.org/10.1051/bioconf/20249601003