Nurmalasari, Desi, et al. “212. Penerapan Model Problem Based Learning Berbantu Media Visual Untuk Meningkatkan Berpikir Kritis Siswa Kelas III SD”. Prosiding Seminar Nasional Pendidikan Profesi Guru, vol. 1, no. 1, July 2023, pp. 1898-06, https://conference.upgris.ac.id/index.php/psnppg/article/view/4241.