XAVIER, Genito Ferandes; UTAYA, Sugeng; SUMARMI, Sumarmi. The Effect of the PBL Learning Model using Videos to Improve Student Motivation and Learning Outcomes in Geopolitical Material in Timor-Leste. Journal of Educational Sciences, [S. l.], v. 10, n. 5, p. 307–319, 2026. DOI: 10.31258/jes.10.5.p.307-319. Disponível em: https://jes.ejournal.unri.ac.id/index.php/JES/article/view/2141. Acesso em: 25 sep. 2026.