Sarjani, L.P.W. et al. 2023. The Influence of Project-Based Learning Models on Collaboration Skills and Science Learning Outcome for Junior High School . Jurnal Penelitian Pendidikan IPA. 9, SpecialIssue (Dec. 2023), 1284–1292. DOI:https://doi.org/10.29303/jppipa.v9iSpecialIssue.7243.