JANINE C. MACARAYA; SAN PABLO, Generie Mae G. Exploring the Effectiveness of STEM, SSI, and Flipped Classroom Approaches to Improve Learning: A Meta-Analysis of Instructional Innovation. International Journal of Research in Social Science and Humanities (IJRSS) ISSN:2582-6220, DOI: 10.47505/IJRSS, [S. l.], v. 7, n. 1, p. 91–109, 2026. DOI: 10.47505/IJRSS.2026.1.9. Disponível em: https://ijrss.org/index.php/ijrss/article/view/801. Acesso em: 8 jan. 2026.