ASTUTI, Ruli. Buku Ajar Bahasa Indonesia MI/SD. Umsida Press, [S. l.], p. 1–218, 2021. DOI: 10.21070/2017/978-979-3401-69-0. Disponível em: https://press.umsida.ac.id/index.php/umsidapress/article/view/978-979-3401-69-0. Acesso em: 26 jun. 2025.