Corncob-Derived Sulfonated Magnetic Solid Catalyst Synthesis as Heterogeneous Catalyst in The Esterification of Waste Cooking Oil and Bibliometric Analysis. Indonesian Journal of Science and Technology, [S. l.], v. 9, n. 1, p. 109–124, 2024. DOI: 10.17509/ijost.v9i1.64219. Disponível em: https://ijost.upi.edu/index.php/ijost/article/view/399. Acesso em: 24 jul. 2026.