Siti Karsini, Sugiharto, Janu Pinardi. Identification of Student Errors in Solving Quadratic Function Problems in Class X SMAN 1 Palangka Raya. JPN [Internet]. 2025 Jan. 24 [cited 2025 Jan. 31];25(2):111-23. Available from: https://e-journal.upr.ac.id/index.php/JPN/article/view/15265