NUHA, Ulin; WAHYUNI, Sri; BUDIARSO, Aris Singgih; HASANAH, Uswatun; ANGGRAINI, Novita Eka. The Effectiveness of Flipbook and Video to Improve Students’ Critical Thinking Skills in Science Learning during the COVID-19 Pandemic. Lensa: Jurnal Kependidikan Fisika, [S. l.], v. 9, n. 1, p. 32–37, 2021. DOI: 10.33394/j-lkf.v9i1.3899. Disponível em: https://ojspanel.undikma.ac.id/index.php/Lensa/article/view/3899. Acesso em: 29 sep. 2025.