Sedaghat, Ahmad, Ammar Al Shalabi, Armin Eilaghi, and M. El Haj Assad. 2018. “Laptop Riser, a Useful PBL Project for Diploma Students in Engineering Design”. Journal of Problem Based Learning in Higher Education 6 (2). https://doi.org/10.5278/ojs.jpblhe.v0i0.2148.