Yusoff HM, Hazwani NU, Hassan N, Izwani F. Comparison of Sol Gel and Dehydration Magnesium Oxide (MgO) as a Catalyst in Michael Addition Reaction. IJIE. 2015;7(3). Accessed April 8, 2026. https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/1228