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. 4.9, pp. 174–177, Oct. 2018, doi: 10.14419/ijet.v7i4.9.20645.