“249. Upaya Peningkatan Keaktifan dan Hasil Belajar Tematik Melalui Pendekatan Problem Based Learning Siswa Kelas II SD” (2023), 1(1), pp. 2210–2218. Available at: https://conference.upgris.ac.id/index.php/psnppg/article/view/4316 (Accessed: 12 August 2026).