PARAMITHA, Diyen; PRASETYO, Zuhdan Kun; JUMADI, Jumadi; SIREGAR, Anggi Namira. The Influence of Use of Problem-Based Learning E-Book Materials of Optical Equipment on Improving Students’ Critical Thinking Ability. Jurnal Penelitian Pendidikan IPA, [S. l.], v. 9, n. 11, p. 9149–9155, 2023. DOI: 10.29303/jppipa.v9i11.5165. Disponível em: https://jppipa.unram.ac.id/index.php/jppipa/article/view/5165. Acesso em: 10 sep. 2024.