LINDAWATI, L.; MENDROFA, N. K.; WAHDAH; AHMADIN; A. FITRIANI. Measuring the Effectiveness of Blended Learning in the Post‑Pandemic Era: A Comparative Quantitative Analysis of Flipped Classroom and Hybrid Flexible (HyFlex) Models on Cognitive Achievement and Student Engagement in Indonesian Senior High Schools. International Journal of Educational Research Excellence, [S. l.], v. 5, n. 1, p. 328–340, 2026. DOI: 10.55299/ijere.v5i1.1735. Disponível em: https://ejournal.ipinternasional.com/index.php/ijere/article/view/1735. Acesso em: 10 feb. 2026.