Wulandari, Siti, Rasiman Rasiman, and Muhammad Saifuddin Zuhri. “EFEKTIVITAS MODEL PROBLEM BASED LEARNING DAN DISCOVERY LEARNING BERBANTUAN TANGRAM TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA SMP”. Prosiding Seminar Nasional Matematika dan Pendidikan Matematika 4 (August 20, 2019): 379–387. Accessed April 30, 2024. https://conference.upgris.ac.id/index.php/senatik/article/view/83.