Hadi Siswanto, Deny, Eka Kevin Alghiffari, and Aldo Setiawan. 2024. “Analysis of Electronic Student Worksheets Matrix Requirements Using a PBL Flipbook Model to Stimulate Critical Thinking Skills”. Asian Journal of Assessment in Teaching and Learning 14 (1):36-44. https://doi.org/10.37134/ajatel.vol14.1.4.2024.