Wulandari, Putri, Elfira Rahmadani, and Ety Masithoh. “Analysis of Mathematics Learning Outcomes for SMP Negeri 3 Kisaran Students on One Variable Linear Equation Systems (SPLSV) Material Using Learning Models Problem Based Learning (Pbl)”. Holistic Science 4, no. 1 (April 7, 2024): 5–10. Accessed August 25, 2025. https://jurnal.larisma.or.id/index.php/HS/article/view/476.