Herfa MD Soewardini, Suhartono Suhartono, Endrayana PL Emanuel, Meilantifa Meilantifa, and Amalia Chamidah. “PELATIHAN PENYUSUNAN E-BOOK DENGAN SIGIL BAGI GURU SMP UNESA 1”. JURNAL PENGABDIAN MANDIRI, vol. 1, no. 12, Dec. 2022, pp. 2501-6, https://mail.bajangjournal.com/index.php/JPM/article/view/4396.