Setiawati, Eliana Putri, and Arief Agoestanto. “Development of Problem-Based Learning Mathematical Module With STEM Approach to Improve Problem-Solving Ability and Self Efficacy”. Unnes Journal of Mathematics Education 12, no. 1 (May 16, 2023): 60-71. Accessed November 25, 2024. https://journal.unnes.ac.id/sju/ujme/article/view/68716.