PAMUNGKAS, Sekar; ROHMAN, Fatchur; AL MUHDHAR, Mimien Henie Irawati; NOVIANTI, Vivi. Developing and validating a project-based environmental education (PjBEE) model to enhance sustainability competencies . Biosfer: Jurnal Pendidikan Biologi, [S. l.], v. 19, n. 1, p. 192–218, 2026. DOI: 10.21009/biosferjpb.60468. Disponível em: https://journal.unj.ac.id/unj/index.php/biosfer/article/view/60468. Acesso em: 27 may. 2026.