Cite

    Sheikh, R., Shao, G. N., Khan, Z., Abbas, N., Kim, H., & Park, Y. (n.d.). esterification of oleic acid by heteropolyacid/TiO2SiO2 catalysts synthesized from less expensive precursors. Asia-Pacific journal of chemical engineering, 10(3), 339–346. http://access.bl.uk/ark:/81055/vdc_100025916395.0x000004