PENERAPAN PENDEKATAN PROBLEM BASED LEARNING BERBASIS SCAFFOLDING UNTUK MENINGKATAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA SEKOLAH DASAR. JTA [Internet]. 2020 Feb. 27 [cited 2025 Nov. 3];3(1):33-45. Available from: https://jta.ejournal.unri.ac.id/index.php/JTA/article/view/234