Z. Abdul Kadir, N. Hazana Abdullah, R. Azrol Abdullah, F. Ismail, A. Abdul Kadir, and E. A/P M.Anthony, “Using Problem-Based Learning as an Instructional Approach in Enhancing Problem Solving Skills between Engineering and Business”, IJET, vol. 7, no. 3.25, pp. 681–684, Aug. 2018, doi: 10.14419/ijet.v7i3.25.17825.