Content Validity of PjBL Modules with a STEM-R Approach on the Topic of Renewable Energy for MTs Students. Jurnal Pendidikan Fisika, [S. l.], v. 15, n. 1, p. 1–10, 2026. DOI: 10.24114/e8c94q36. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/jpf/article/view/70373. Acesso em: 29 jun. 2026.