Puspita, V. and Yuhelman, N. 2017. PENINGKATAN PROSES PEMBELAJARAN TEMATIK DENGAN MENGGUNAKAN PENDEKATAN PROBLEM BASED LEARNING DI KELAS III SD: (Enhancing the Learning Process by Using Thematic Problem Based Learning In Class III Elementary School). Perspektif Pendidikan dan Keguruan. 8, 1 (Oct. 2017), 32–39.