Bahriyatin, Triwahyuni E, Kustiyowati. The Influence of Project-Based Complex Instruction (CI) Collaborative Learning Models and Learning Motivation on Elementary School Students’ Problem Solving Skill. jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2024 Sep. 25 [cited 2024 Nov. 22];10(9):6354-62. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/8844