Anam, Firda Saiful, et al. “322. Penerapan Metode Problem Based Learning Untuk Meningkatkan Hasil Belajar Peserta Didik SD 4 Dersalam Kudus”. Prosiding Seminar Nasional Pendidikan Profesi Guru, vol. 1, no. 1, July 2023, pp. 2873-82, https://conference.upgris.ac.id/index.php/psnppg/article/view/4240.