Tirtoni, Feri, and Machful Indra Kurniawan. “Buku Ajar Strategi Belajar Mengajar Di Sekolah Dasar”. Umsida Press (November 17, 2022): 1 - 150. Accessed December 26, 2024. https://press.umsida.ac.id/index.php/umsidapress/article/view/1305.