SU’UDIAH, Firdaus. Pendidikan Ips SD Kelas Awal. Umsida Press, [S. l.], p. 1–104, 2021. DOI: 10.21070/2019/978-623-7578-20-8. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-623-7578-20-8. Acesso em: 1 jul. 2025.