Mustika Nurbayeni, Siregar MAP. Development of Contextual-Based Worksheets to Improve Student Learning Outcomes in Three-Variable Linear Equation System . EduMatSains [Internet]. 2025 Oct. 31 [cited 2026 May 18];10(2):176-92. Available from: https://ejournal.uki.ac.id/index.php/edumatsains/article/view/7451