LIZA MEGAWATI; BADRUN, Badrun; SISWOYO, Siswoyo. Efektivitas Penggunaan Sistem Informasi Administrasi Kelas Berbasis E-Portfolio Di SMP Negeri 1 Kota Agung Kabupaten Tanggamus. J-CEKI : Jurnal Cendekia Ilmiah, [S. l.], v. 4, n. 4, p. 295–300, 2025. DOI: 10.56799/jceki.v4i4.8529. Disponível em: https://al-haramjournal.co.id/J-CEKI/article/view/8529. Acesso em: 24 aug. 2026.