1.
Tirtoni F. Buku Ajar Mata Kuliah Pendidikan PKN SD Kelas Awal. umsidapress [Internet]. 2021Aug.26 [cited 2024Jul.17];:1-355. Available from: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-602-5914-65-2