Srikan, Parawee, et al. “A Problem-Based Learning (PBL) and Teaching Model Using a Cloud-Based Constructivist Learning Environment to Enhance Thai Undergraduate Creative Thinking and Digital Media Skills”. International Journal of Interactive Mobile Technologies (iJIM), vol. 15, no. 22, Nov. 2021, pp. pp. 68-83, doi:10.3991/ijim.v15i22.24963.