Chayani, S. N., & Setyawan , A. . (2022). IMPROVING COGNITIVE LEARNING OUTCOMES OF SCIENCE LESSONS THROUGH PROBLEM BASED LEARNING MODELS ASSISTED BY PUZZLES. Maktab: Jurnal Pendidikan Dan Teknologi, 1(1), 249–258. Retrieved from https://journal.citradharma.org/index.php/maktab/article/view/470