Indah Primahati, et al. “Penelitian Penerapan Model Project Based Learning Untuk Meningkatkan Hasil Belajar Siswa Kelas VI Sekolah Dasar”. Journal of Innovation in Primary Education, vol. 1, no. 2, Dec. 2022, pp. 132-43, https://ejournal.unma.ac.id/index.php/jipe/article/view/3935.