ERNA AJIZAH; JAMALUDDIN; I PUTU ARTAYASA. Validitas Bahan Ajar IPA Berbasis Problem Based Learning Untuk Meningkatkan Keterampilan Berpikir Kritis dan Sikap Ilmiah Peserta Didik. Journal of Classroom Action Research, [S. l.], v. 4, n. 2, p. 121–127, 2022. DOI: 10.29303/jcar.v4i2.1855. Disponível em: https://jppipa.unram.ac.id/index.php/jcar/article/view/1855. Acesso em: 22 nov. 2024.