NAINGGOLAN, D. R. M.; SUDARMAN, S.; SUBAGIO, N. Application of LKPD Social Studies Based Collaborative Learning Model Structured Problem Solving Type in Improving the Completeness of Class VII Students’ Learning Outcomes at SMP Negeri 1 Tenggarong Seberang. Educational Studies: Conference Series, [S. l.], v. 2, n. 2, p. 307–317, 2022. DOI: 10.30872/escs.v2i2.1920. Disponível em: https://jurnal.fkip.unmul.ac.id/index.php/escs/article/view/1920. Acesso em: 4 apr. 2025.