Nazwa Mutia Syafitri, Helina Qatrunnada Nasution, Khalida Rahmah, and Dian Armanto. “A Literature Review of Students’ Difficulties in Quadratic Equations and Problem-Solving Learning Using LKPD : Penelitian”. Jurnal Pengabdian Masyarakat dan Riset Pendidikan 4, no. 4 (April 1, 2026). Accessed April 29, 2026. https://jerkin.org/index.php/jerkin/article/view/5901.