Purbaningrum, Mayang, Sahrul Ramadhan, and Raudya Thauzahra. “Why Is Math Difficult? : Beliefs That Affecting Students’ Mathematics Skills”. Jurnal Paedagogy 10, no. 4 (October 17, 2023): 1000–1009. Accessed August 16, 2025. https://e-journal3.undikma.ac.id/index.php/pedagogy/article/view/8652.