Rami, Divia Raina, and Amma Achiaa. “Mathematical Problem-Solving Ability of Junior High School Students in Terms of Self-Directed Learning”. Pasundan Journal of Mathematics Education : Jurnal Pendidikan Matematika, vol. 15, no. 2, Nov. 2025, pp. 102-15, https://www.journal.unpas.ac.id/index.php/pjme/article/view/34279.