A Perbandingan Pelarut dan Durasi Transesterifikasi Terhadap Sifat Fisikokimia Biodiesel Berbasis Limbah Minyak Goreng Bekas: Comparison of Solvent and Transesterification Duration on the Physicochemical Properties of Used Cooking Oil-Based Biodiesel. JITP AGROTECHNO. 2026;11(1):1-13. doi:10.24843/JITPA.2026.v11.i01.p01