RITARTINI. Improving Collaborative Ability and Learning Achievement in Mathematics Through the Project-Based Learning (PjBL) Model Using Diagram Image Media for Class VI Students of SD Negeri Purwoharjo Academic Year 2021/2022. IJCER (International Journal of Chemistry Education Research), [S. l.], v. 7, n. 2, p. 76–80, 2023. DOI: 10.20885/ijcer.vol7.iss2.art6. Disponível em: https://journal.uii.ac.id/IJCER/article/view/29375. Acesso em: 10 may. 2024.