Hasri, Putri, S.E., Negara, S.P.J., Afni, N. and Anwar, F. 2026. Synthesis of NiO Nanoparticles as a Catalyst in Transesterification Reaction from Used Cooking Oil for Biodiesel Production. Science and Technology Indonesia. 11, 1 (Jan. 2026), 280–287. DOI:https://doi.org/10.26554/sti.2026.11.1.280-287.