SHU’AIBU T.; JAMO H.U.; IBRAHIM U.B.; GWADABE S.H.; SAMBO H.S. Effect of ZnCO3 as heterogeneous catalyst in the production of biodiesel using Castor oil. JOURNAL OF BASICS AND APPLIED SCIENCES RESEARCH, [S. l.], v. 4, n. 2, p. 219–223, 2026. DOI: 10.4314/jobasr.v4i2.22. Disponível em: https://jobasrfudutsinma.com/index.php/ojs-files/article/view/274. Acesso em: 7 apr. 2026.