MAHPUL, Mahpul. Pelatihan pengembangan materi ajar speaking berdasarkan rekayasa faktor kognitif (task complexity) bagi guru-guru SMP dan SMA di Kabupaten Lampung Selatan. Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan, [S. l.], v. 4, n. 3, p. 212–218, 2020. DOI: 10.23960/jss.v4i3.236. Disponível em: https://www.jss.lppm.unila.ac.id.121-50-32-50.cpanel.site/index.php/ojs/article/view/236. Acesso em: 15 jan. 2026.