Nainggolan, Dorkas Ria Marcelina, et al. “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, vol. 2, no. 2, Dec. 2022, pp. 307-1, doi:10.30872/escs.v2i2.1920.