[1]
N. R. . Rizqi and L. . Arini, “The Developing of Teaching Materials Oriented to Problem-Based Learning to Improve Students’ Mathematical Communication Ability”, IJSBAR, vol. 54, no. 4, pp. 186–195, Nov. 2020, Accessed: Dec. 16, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/11899