Usqo, U., N. M. Hutapea, and K. Kartini. “Boosting Students’ Mathematical Problem-Solving Skills With PBL-Based LiveWorksheets: Focus on Whole Numbers and Fractions Topic”. Edumatika : Jurnal Riset Pendidikan Matematika, no. In Press, Sept. 2024, https://ejournal.iainkerinci.ac.id/index.php/edumatika/article/view/3933.