1.
Study of Viscosity and Density Changes of Waste Cooking Oil Biodiesel Due to Gradual Heat Treatment. EJIITEK [Internet]. 2025 May 31 [cited 2025 Aug. 11];15(1):1-12. Available from: https://e-journal.upm.ac.id/index.php/energy/article/view/energy.v15i1.1511