SUGIHDHARMA, Joseph Ananda; BACHTIAR, Fitra; YUDISTIRA, Novanto. Improving Frame-based Engagement Classification in E-Learning Using EfficientNet and Normalized Loss Weighting. Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), [S. l.], v. 9, n. 3, p. 635–645, 2025. DOI: 10.29207/resti.v9i3.6161. Disponível em: https://jurnal.iaii.or.id/index.php/RESTI/article/view/6161. Acesso em: 29 oct. 2026.