Yanti AN, Subaidi A. Analysis of Tenth-Grade Students’ Mathematical Logical Thinking Ability in Solving Three-Variable Linear Equation System Problems Viewed From Self-Confidence. JUPERAN [Internet]. 25 Juli 2025 [dikutip 4 Agustus 2025];4(02). Tersedia pada: https://ojs.smkmerahputih.com/index.php/juperan/article/view/1059