Wulandari S, Rasiman R, Zuhri MS. EFEKTIVITAS MODEL PROBLEM BASED LEARNING DAN DISCOVERY LEARNING BERBANTUAN TANGRAM TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA SISWA SMP. SENATIK [Internet]. 2019Aug.20 [cited 2024Apr.30];4:379-87. Available from: https://conference.upgris.ac.id/index.php/senatik/article/view/83