SIGIT, D. V.; SIMANULLANG, C. S.; RINI, D. S. Flipped learning’s impact on junior high students’ critical thinking in ecology topic: English. Research and Development in Education (RaDEn), [S. l.], v. 4, n. 2, p. 1520–1528, 2024. DOI: 10.22219/raden.v4i2.35438. Disponível em: https://ejournal.umm.ac.id/index.php/raden/article/view/35438. Acesso em: 4 jun. 2026.