Suhartini, A. Rulyansah, P. Widowati, and Sukimin. “Peningkatan Hasil Belajar Tema 7 Materi Perubahan Wujud Benda Melalui Media Digital Smart Book Pada Peserta Didik Kelas V UPT SDN 238 Gresik”. PROSIDING NATIONAL CONFERENCE FOR UMMAH, vol. 2, no. 1, June 2023, pp. 251-5, https://conferences.unusa.ac.id/index.php/NCU2020/article/view/1039.